[nickm1123]

It is really tough to gauge value of cards unless you look at completed sales. I used to be big on Beckett Value but found this only held true during trades. However, some people used "sell value" while trading. If I want to know the value of a card typically I use Ebay Completed sales. This will also give you an idea of what specific brands go for. For example you could look at a brand of cards you are looking to purchase, pull up a checklist of that brand, and see what some of the cards go for. Again this isnt exact, but it gives you an idea of what you might get in terms of reselling the cards you get.