As the face of the gaming industry shifts, with many consumers turning away from traditional consoles and toward mobile gaming, has the pre-owned game industry come to an end for GameStop (GME 3.52%)? In this video, Motley Fool consumer goods analyst Blake Bos takes a look at the company's earnings, discusses why investors should expect some weakness in 2013 despite a beat on earnings estimates for this cash-rich company, and tells us what the key things to watch with GameStop in 2013 will be.