Thank you for that feedback about the scanner.  That is the one reason that I would consider a native app.  The scanner capabilities would be better.

I'll take a look at Discogs app and see how they do the scanner.  Thank you WhiteKenny

Please tell me the games and I'll look into it and remove them.

Thank you for letting me know.  We do not have Japanese Pokemon cards yet, but we do have Japanese and European video games.  With searches we don't know exactly what the search is for (video games or pokemon cards) so we offer the filtering by region on all searches.  

At some point we'd love to add Japanese Pokemon cards.  I'll leave this issue open to see how popular Japanese Pokemon cards are with users.

Does TCGPlayer offer an export?  If so, then it might be possible to import the collection already using our collection importer tool.

https://www.pricecharting.com/collection-text-importer

Closing.  We should have booster boxes and booster packs for every Pokemon set now.

Can you give me a link to the page that shows the region filtering for Japan?  I want to make sure that is addressed if possible so people are not confused.

Your welcome.  We will keep at it and keep looking for sales for all the games on the site.  

I manually forced a revalue on those PC Engine games because I'm guessing you added some sales data for them.  

https://www.pricecharting.com/game/jp-pc-engine-cd/cho-aniki#completed-auctions-cib

I manually added some sales for D as well.  It is a harder one to grab sales for because the title is so short.  We have too many false positives on those short names so adding them manually is our only work around.

We are constantly updating the values of items but we prioritize value updates based on popularity of the items.  Doing real-time updates wouldn't be practical because the value of the items doesn't really change with every single sale.  There is fluctuation, but most of that is due to differences in sellers, the condition of the item, etc.  

If you give me examples of some items that don't reflect the real  value on eBay I can definitely investigate though.  There is always room to tweak and improve so if you give me concrete examples I can look into them more and hopefully improve our system.

Closing this as a duplicate of this issue.

https://pricecharting.userecho.com/en/communities/1/topics/542-track-prices-for-amstrad-gx4000-system-and-games

Please go to that page and vote for it there.  Thank you