Wow that was fast lol thanks!

I would greatly appreciate this feature as well, HOWEVER, once you get past Hot Wheels/Matchbox/Other stuff in the target toy aisle, it begins to get really confusing. there are different 'tiers" of diecast manufacturers out there when it comes to licensing, distribution, production numbers, etc. and at least personally it can be a pain to keep up with who makes what and how to go about getting it. Each brand has their own generic releases, but keeping track of every event car and dinner car and chase and what not for a lot of these more obscure brands is difficult for a casual collector like me. Having a way to track them like PriceCharting does with cards and games would be a dream come true for a collector but it sounds like a nightmare for a developer. 

Additionally, if it wouldn't cost too much overhead, allow the buy button to be clicked only if there are 1 or more available for sale within the Pricecharting community

i would also like this feature, I have many cards that I have several of that I may want to filter by and send to someone as a "these are all my traders, make me an offer if you want" kind of deal