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 Post subject: Collection value
PostPosted: 15 Nov 2022, 03:39 
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Hello!

Following this request from ... 2011, I added a rough evaluation of one's collection value based on the 2004~2022 average of selling prices on LDDb.

admin @ Collection Value Total

Attachment:
Eval.png
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This is BY NO MEAN a precise statistical tool and is only here for entertainment because:

  1. Titles that have never sold here will not contribute to the sum => underestimation
    :arrow: Could come with a warning that only X% of the collection has statistics to back the estimation.
  2. Unless the prices have remained flat since 2004, average will overestimate price drops and underestimate price increases.
    :arrow: Could be improved by using moving averages or "X most recent" when available.
  3. Without grading added to your collection, the mint average prices will be used, this would underestimate collections with sealed titles and overestimate collections with used/damaged ones.
    :arrow: Requires user inputs.
  4. Very mainstream titles with multiple transactions will bring some interesting contribution to the sum but collections with obscure/unique title will be grossly underestimated.

Julien
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 Post subject: Re: Collection value
PostPosted: 15 Nov 2022, 05:41 
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Utterly pointless exercise, but just for fun if I apply this algorithm to ALL the LaserDisc collections right now (a million+ entries), I get:

Min: $10,093,006.55
Avg: $10,591,651.13
Max: $11,294,693.59

We're (collectively) multimillionaires ;-)

Julien
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 Post subject: Re: Collection value
PostPosted: 16 Nov 2022, 18:19 
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admin wrote:
[*] Unless the prices have remained flat since 2004, average will overestimate price drops and underestimate price increases.
:arrow: Could be improved by using moving averages or "X most recent" when available.


I made a quick update to only consider the most recent used/mint/sealed transaction prices for each title and updated the Collection stats.

Approach is the same: no past sale = $0, mint by default, and mint by default if used or sealed data are not available.

Quote:
Collection value based on all historical data: Min $x.xx - Average $y.yy - Max $z.zz
If only the most recent transactions are considered: $x.xx


Re-evaluating the total in collection as of today with the average method, we are now at:

Min: $10,115,223.67
Avg: $10,614,213.85
Max: $11,317,750.83

And the "last prices" method shows that recent prices are slightly below their historical average: $10,446,546.93

Julien
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 Post subject: Re: Collection value
PostPosted: 03 Jan 2023, 06:38 
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For some reason I missed this post Julien.

Thanks for creating this new algorithm. I always did wonder what my current collection might be worth and I am bit shocked it's more than I thought. I guess it's a good reason to keep it now ;).
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 Post subject: Re: Collection value
PostPosted: 09 Dec 2024, 13:57 
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Re-evaluating the total in collection as of today with the average method, we are now at:

Min: $12,763,934
Avg: $13,380,935
Max: $14,256,938

And with the latest transactions: $13,663,122

Julien
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 Post subject: Re: Collection value
PostPosted: 10 Dec 2024, 22:57 
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Heh, neat. Actually selling is another matter of course. I've been giving away chunks of my collection and I've had people back out for stuff that would be completely free. Not just LD as I've been freeing up a lot of space and getting rid of things I won't use again. A pretty nice feeling.

Would be cool if there was a similar thing for blu-ray. Pretty much everything else I have a lot of, has some kind of collection value tracker easily available.
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 Post subject: Re: Collection value
PostPosted: 10 Dec 2024, 23:26 
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Now I'm wondering what the most valuable title in my collection is.

Of course it won't be any of the ones I'd part with. :P
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 Post subject: Re: Collection value
PostPosted: 10 Dec 2024, 23:55 
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takeshi666 wrote:
Now I'm wondering what the most valuable title in my collection is.

Of course it won't be any of the ones I'd part with. :P


Usually how it goes. The ones people were really wanting to buy in my LD collection are the ones I don't want to get rid of.
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 Post subject: Re: Collection value
PostPosted: 11 Dec 2024, 11:58 
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gypsy wrote:
Heh, neat. Actually selling is another matter of course. I've been giving away chunks of my collection and I've had people back out for stuff that would be completely free. Not just LD as I've been freeing up a lot of space and getting rid of things I won't use again. A pretty nice feeling.

Would be cool if there was a similar thing for blu-ray. Pretty much everything else I have a lot of, has some kind of collection value tracker easily available.


It always depends. If you're looking to sell a collection as a package, you only get a fraction of the value. If you sell it piece by piece, you can actually get a lot more.

Reference Discs for example usually have no price tag here. I found one for $35 as average and those are going for 500+ on eBay now.

On the other hand, I see discs for 1000+ here but it is very rare to find someone whos willing to pay that.
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 Post subject: Re: Collection value
PostPosted: 11 Dec 2024, 16:00 
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I did that on here for quite awhile, much more pleasant experience than eBay. Took me several years but I sold off plenty to where I'm happy trying to mostly give away the rest. I was able to ship out 11 and 10 LDs to two different people about a week ago.
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 Post subject: Re: Collection value
PostPosted: 31 Dec 2024, 10:31 
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Is there a way to search for discs in the collection, that do not have a sale price in the DB? This way one could estimate the real collection value. Take the value shown and see how many disc have been ignored (no price in DB). I could not find any advanced search option to do this.
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