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  • 164 messages
  • October 03, 2008 11:53
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October 03, 2008 11:53

Is it an idea to state the average purchase price next to the catalog value? When I add a book to my collection, I enter the purchase price and condition. When others also do this, you can calculate the average purchase price and you also get a good picture of the catalog value.
The reason for allowing both things to coexist is that if someone bought "album X" 10 years ago for $ 10, the album could now be worth $ 20.
You can also overcome this by also taking the purchase date as value; that you only include "fresh" data from the past few years.
Personally, I find this value at least as interesting as a catalog value determined by 1 person - you never know exactly what that value is based on - and whether that value is actually paid by someone.

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  • 380 messages
  • October 04, 2008 11:02
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October 04, 2008 11:02

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  • 164 messages
  • October 04, 2008 18:22
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October 04, 2008 18:22

That's why I said:
“You can also overcome this by also taking the purchase date as a value; that you only include "fresh" data from the past few years. "

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  • 164 messages
  • October 06, 2008 12:29
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October 06, 2008 12:29

Anyway, the purchase value is much easier for the average visitor to enter than the catalog value. For the catalog value you really have to be a comic book dealer, because then you have real expertise in this area.

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  • October 09, 2008 12:19
October 09, 2008 12:19

I also think this is a good idea. You can optionally have the value calculated by dividing the purchase prices of the last year by the number of values entered.
Now catalog values are filled in by 1 person and as said it does not say what that value is based on, except for the condition of the article.

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  • 177 messages
  • October 09, 2008 13:02
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October 09, 2008 13:02

I think you can't always use this as a data. For example, someone can buy a number of albums very cheaply. Or a series may no longer be so popular after a few years. All factors that influence the actual sales price.
Just as much as those ridiculously high list prices in the Matla catalog.
They sometimes say: "It's just what a fool gives for it ...
Example with that Tintin Facsimile 1st edition. In my opinion, this just saves nergen. An album of 19.95 that after a number of years has just 300 catalog value. And that edition is not that rare.

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  • October 09, 2008 16:15
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October 09, 2008 16:15

That's why the “bought for” value is interesting! I also do not mean that this value should replace the catalog value, but I think it is useful extra info, if you indeed only extract the data from, for example, the past 2 years. Then it does say something.

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  • October 10, 2008 01:03
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October 10, 2008 01:03

You are right about that.
I just find it difficult how sometimes the value (in money) is determined for an album. There are so many factors that can determine this, I doubt it can be determined with a calculation alone.

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  • January 06, 2009 23:38
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January 06, 2009 23:38

seems interesting if you also know how many albums were bought in that period and if you take the quality rating into account
so if there is only 1 album at x price it will weigh differently than 100 albums at x price
only then would it be a useful tool to estimate the value
if you do this in this way or via an entered valuation it remains an estimate
but the more means to estimate a price, the more accurate the value becomes
how do you think catalog values are determined, this is done on the basis of what was paid for the object, similar objects (different quality), supply and demand so 3 out of 4 is not bad as an extra price indication
and above all, do not forget it is always about an estimate, the catalog value is also an estimate

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  • 18 messages
  • March 03, 2009 16:48
March 03, 2009 16:48

Great idea, I was already wondering why I would enter the purchase price. I can estimate an album if I see water prompted for it, but is that the value?
In Breda, for example, I saw the Rhaa Lovely comic magazines complete for 80 euros. Last year I also saw them for that price in Haarlem, but in new condition, as if they came straight from the press. Is the value then 80 euros?
The complete series of Gummi comics magazines in that state cost 50 euros. In the end I took those series together for 50 euros. A bargain of course. :)
But is that the value? About 1 euro per sheet?
I saw the comic book gift about Don Lawrence in Breda, ranging from 5 to 30 euros.
One pays a lot for the other little. The value is somewhere in between.
Basing the catalog value on the average purchase value of the last year seems a good indicator to me.
It is important to consider which formula will be used for this. For example: (current price + average price paid) / 2. In that case, do not include the outliers, the highest paid 5% and the lowest paid 5%. Then you get a good impression of the value.
Until that has been arranged, it is useful to fill as many prizes as possible. Now the price is so often unknown. You can only estimate the value of your own collection when all prizes have been filled. It is a shame that there is a price here that is not quite right.
The prices that I see now are listed, you really don't buy the album for that. Fantalia by Andreas in new condition for 50 euros? I do not believe it. In any case, that is not the price that is used on the stock exchange.
So people…. make price suggestions and corrections.
But if, as I am, you are curious about the total value of your collection, the final price must end up in the export file of course :)
Anyway…. it still takes a while before everything is in there. By the time I'm done with that, there will undoubtedly be a lot of improvements in Catawiki.

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  • March 04, 2009 00:29
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March 04, 2009 00:29

We will make sure that you can also access the value of your collection in My Collections.
It is indeed important that we have as many realistic list prices as possible.
We will also improve the quality of the prices by relying more on actual transactions (sales) that take place on the site and the prices that come about.

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  • 18 messages
  • March 04, 2009 10:19
March 04, 2009 10:19

Nice idea to include the prices traded on Catawiki for the transactions, but if you rely too much on those prices, I see two possible problems.
1. The limited number of albums sold in this way. Only a fraction of the items included in the catalog are actually sold through Catawiki.
2. It keeps the price down. In general, the albums are offered for sale below the list price. Logical, because the seller wants to get rid of it, so will like to keep his price interesting It seems to me that as many sources as possible should be used for a price determination, of which I think the entered recent purchase prices are the most valuable.
In any case, the price remains an indication. Although traders adjust prices to each other, the differences remain considerable. There is no right price. Collecting prices from as many sources as possible seems like a good solution.

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  • March 04, 2009 20:20
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