Anyone know of a website that analyzes the psa quantity variance over a period of time? I know zandgemporium did something similar for each of the WOTC sets. Was curious if there was a site somewhere that did this as well.
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A website I’ve been working on, pokemetrics.org, focusses on providing historic pop report data. That said it does only go back 12 months so may not be quite what you’re looking for.
Comparing PSA 10 grades with other grades is usually quite meaningless though unfortunately as you likely won’t have any clue what the card has been through prior to being sent to PSA. I’ve had PSA 10 grades on cards which have sat loose in a box for years and I’ve had PSA 8 grades on cards sent to PSA straight from booster pack openings.
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Thank you your website is very helpful:) Do you use ebay for the quantities? Or the PSA registry?
The PSA pop reports
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