So I sold a PSA 10 gold star umbreon about a month ago and was looking at the current prices for it when I noticed it shows I sold the card for $2000… Some people may think “wow record price, new market price for this card, prices going up!!!”. Now while this price is technically true, that price is in CAD (actually about $1510 USD). I don’t think PSA auction prices differentiates currencies yet, but it would certainly be nice to give people a bit of a more accurate representation of the actual sold listings of cards, or under “auction house” when you click the card it should show “ebay.ca” or “ebay.com” instead of just “ebay” so people are more aware. I also looked up a few other cards I sold recently and they all seem to be much higher than the “market price”(!!!) Just an observation and just to let people know to really do their research when buying/selling 
Interesting pokematt… I think that explains why I’ve noticed a discrepancy between the PWCC EBay store listings and listings on their actual website. If you pull up each, sort them from highest to lowest, you’ll start to see the discrepancies. I’ve seen some in their current auction already. I always thought that it was just a delay of information between the two websites, but this makes more sense. Good observation ! : P
The problem is it’s not manually entered and whatever system is set up to collect the data simply isn’t good enough to catch them all or make sure they’re accurate like in your case. It’s missing a ton of sales. When I compare the sold history that I’ve personally recorded to what shows up on the PSA list it’s very hit and miss.
It’s a great resource for finding median price and viewing general trends. I wouldn’t recommend it for much more than that.
Yeah it doesn’t matter if it doesn’t capture every single sale ever, it just needs to capture enough to show an average market price and trends over time - which it does.
Any person using the tool or any similar tool should always delve deeper into the data and analyse it properly before coming to any conclusions or making any financial decisions. If a data point is an outlier in something like this there’s usually an obvious reason for it.
Throw out the top 10% and the bottom 10% then figure out the average of what’s left.