By Daniel Kline The company says it has a plan that’s working. Is it? GameStop (GME) – Get GameStop Corp. Class A Report sells videogames. It sells other stuff, but walk into one of its stores and look around and you still see walls of videogames. The problem — and it’s a very big one — is that anyone who owns a Microsoft (MSFT) – Get Microsoft Corporation Report Xbox or Sony (SNE) – Get Sony Corp. Report Playstion can download videogames right from their console. That leaves Gamestop in the business of selling something that people can literally buy without leaving the house. Despite that, …