Everyone gets screwed the developer because they cant sell more copys of their games(even if they are good or crappy), the sellers because they wont even be able to get another used game, and the guy that buys the used game for almost the same price as new.
I really do hope some day we get to see something like steam on the consoles, where you get rid of the middle guy and just get the shit from sony or the developers themselfs, keep your game forever and if you want you can give it away for free.
Or implement a pay as you go method and just play everything, that would be just awesome just get charged .99 cents a full hour of play and play anything you like and give the developers their share of each our played
This buy/sell used games scheme makes me sick, these guys rip you off both ways by buying you really low and selling you pretty high. It even makes me angry just to know this guys are ruining the game industry with their crap.