Also, don't forget that the database now has a feature for multiple collections. This allows members to have cards in collections that might overlap, but you can see "where" the one you own actually is (if you only have one), or the fact that you have more than one. Maybe you just want to list each sport separately. Or each player. The flexibility is there for you to do it however you choose. Or just keep it all in one place. Completely up to you and what works best for you. Just wanted to remind you of the possibilities.
-- Dan --
Note: Please see my profile for more info regarding trading (section updated 3/4/2024). I have added a large portion of my inventory to the site, and currently have trading turned on (details are in my profile).