Okay as of August 18 gamestop is revamping is trade in policy so now you get a flat rate. All games get 20 % high return. Those who use power up cards will receive 10% bonus. Also pre-orders and extraneous services such as Game Informer subscriptions will no longer offer a trade-in bonus. For those who are wondering why I let he statement speak for it self.
“By eliminating the higher end price of products we buy and raising the lower end, we are able to raise the overall value the customers will receive,” explains one of the internal documents cited by Kotaku. “With this program, we will not have complex multi-tiered trade promotions for the associates to remember and less math for the customer to understand what they are getting for their games.”
Article:http://www.joystiq.com/2014/08/05/report-gamestop-to-revamp-complex-trade-in-program/
As always thank you for reading.