I wasn’t a tester for MAG, but I was a tester for the PSP game “Gangs of London”. I got a UMD with the demo on it, a poster, and then in a separate letter I got a “Thank you” note and a coupon to get 10% off of the game (at Best Buy only). I’m not sure if they are still doing that type of thing though, that was about 3 years ago.