Until now, Gamefly has been all about game rentals and used game sales. Now, however, they’re entering the realm of used game trade-ins. Select Gamefly customers have been invited into a beta program for the new trade-in system, which allows you to send your old games back to Gamefly and exchange them for credit toward your monthly Gamefly fees. The trade-in values for some sample newer games include Bioshock at $23, Lost Odyssey at $31.62, and Halo 3 at $23.
Source: Gizmodo