i am trying to find out how to tell if i have cards that are worth keeping or if i have cards i can just give away . i have look all over the internet for answer just looking to find out what most people here do .Everybody says beckett price guide is way off the mark, then i go over to ebay and then i see the cards i wondering about but don't see they ever sell. So my question is If i see it on ebay and see that it has never sold should i take that as a card i should give away .