Your comments

We consider PC to be region free.  So you should add those Japanese PC games to the "PC Games" section. Thank you

This is a good idea.  I can see why that would be useful.  So I can look into it more, can you give me a couple of examples of cards that sell for that big premium when PSA 10?  

I would assume that cards in really good condition but ungraded, would sell for a premium to lower condition.  But a tool to help identify the cards with those big differences would be a good starting spot to focus on when looking for cards to grade for profit.

You have this card, but it looks like there is a misprint.  

https://www.pricecharting.com/game/pokemon-black-&-white/swanna-37


The normal card isn't worth much so I'm guessing the misprint is slightly more, but still not a ton.  I don't really know about misprint values though. Sorry.

I've fixed this for Crash Bandicoot now.  I've also deleted a bunch of sales data that was incorrect as well.  The new price was drastically incorrect for the Black Label.

https://www.pricecharting.com/game/playstation/crash-bandicoot-black-label


The default product for that item will now be the Greatest Hits version instead of the Black Label one.

This is a tough issue.  The problem with consoles is the words people use to sell them.  There aren't really standards so "Complete" can mean different things to people.  And the listings don't always say "Cables" or "Controllers" even if those items are included.  Unfortunately with inconsistent data going in, it is very difficult to get consistent data coming out.  

The new price tier you mentioned could help, but it would take lots of backend changes to make that happen and still lots of manual work on an ongoing basis to manually move the sales into the right places.

Looks like this is deleted already.  I don't see it listed anymore.