On used games...

So yesterday, Janie and I went to Best Buy with Steph and Jer to compare teevees. They're looking at an upgrade to go into the new condo they're having built, and they wanted to see what a few models looked like in person. While we were there, I checked out prices for a DDR game for the 360, figuring, what the heck, I've got the controller, might as well get a game for it. Being somewhat of a cheapskate, when I saw that the older DDR Universe title was still selling for $30, I decided to wait and swing by Gamestop and see if I could pick it up used for less. So we hop in the Prius and drive up the street to the mall, find the same title, and check the used price. $30. What the heck? I've found some good deals on used stuff at Gamestop before (the used hardware can be a steal), but I don't ever think I'll buy used games there unless I find some huge savings. I just don't get selling software used when you can get a new, fresh disc for the same price.