Trying to make this simple"
As a collecctor, you make sure you fund your account and then see if there anything for you to puirchase. The shipping rate is real cheap.
As a seller, you send in the cards, it costs 25 cents each to process for the most part and then 1 cent per month after 90 days to keep the card in your account. And after your cards are processed, you can select what you want to sell the card for. Please note, after they receive the cards, other than pricing the cards, you are done with any fulifilmment, as they handled all the shipping details
http://www.comc.com/