When sorting collection by biggest increase in price, it should take into account from the date the card was added to the collection on pricecharting!

This can be programmed easy:

1. Record all prices of cards on day it was added to collection on pricecharting (should be easy since there is a built in historic price chart on pricecharting)

2. If present day is Y, record all prices of cards on day Y (should be easy since there is a built in historic price chart on pricecharting)

3. Record the difference, Y-X and sort by largest to smallest

This is helpful for me and for any avid collector because I would like to see which cards have gone up the most since I purchased to maximize my profits when in the mood to sell some cards locally or on eBay. The current algorithm is quite poor in actually filtering from biggest to smallest increase in price alone.

ex: Separating American cards from Japanese cards

A couple games listed on the Amiga CD32 page (such as The Town With No Name) are in reality Amiga CDTV games. While people would have to add more CDTV games over time, it would be nice to differentiate between the two of them

Would like to be able to print wishlist to take to expos/conventions

ID
Product-Name
Console-Name

Loose Price

Ability to download/print the checklist of a card set with card name and card number listed separately so that filtering/sorting is more effective

I’m not sure how hard it would be to do but Hot Wheels Collectors use eBay sold already for pricing their collections but I think that would be another huge market for you guys and would be awesome to see on the app. Love you Guys for the games and legos already so that would be cool to have another collection on your charting. 

Add ability to Import new TCG that are sold on eBay, etc. Example Meta Zoo, Sorcery, Wonders of the First, BOBA.