I'll be honest, I bought a few games from CC that I knew I could sell for a bit of a profit. However, I always start my auction off at $.01 and have $3 shipping with free delivery confirmation.
I'm not looking to make very much money, only enough to cover my expenses and try to make a couple bucks in the end.
These guys who are marking games up that much are insane. I don't want to totally rip people off, instead I'll leave it to ebay buyers to decide on how much the game is worth.