Show HN: A site to manage and track the value of your collectibles

Hey guys, I’m building a site for collectors of Pokémon, Magic: the Gathering, Sports Cards, etc. (starting with Pokémon) and would love your input.

Product feedback on the current version would be super helpful, and if you're a collector yourself, thoughts on what would be most useful for me to build next would be great.

So far, I’m basically gathering up eBay sales to track the value of cards/your whole collection over time. To actually start providing services, the next things I’m thinking of adding on top are:

1. Sell your cards easily - input the cards you want to sell and get a quick offer on all of them 2. Grading - just like PSA, CGC, etc. - high quality, flat rate grading service (I know this one’s challenging, since so much depends on brand reputation, and starting from zero is rough) 3. Vault - Store your cards in a safe location, fully insured and protected, and manage them from the site. Buy, sell, or grade cards directly from the vault.

Do any of these seem more crucial/needed than the others? Also, is there some other service that you’d love to have that doesn’t exist yet?

Looks great. You've got my point. The chart of price looks great, but it's hard to understand. It would be nice to see the minimum price, maximum prices and the number of offers in given day. Url to highest/lowest would also be nice ;)