More and more people that I know which used to play games on consoles are switching back to playing games on their PC's. This seems to be happening for a few reasons ...
1. They can upgrade their PC hardware when it starts to feel aged.
2. They don't want to invest in games right now for current consoles, because they don't know which of the new consoles they are going to get, so until the new consoles solidify, they have put console game purchases on hold.
3. Platforms like Steam, Origin, Gamestop, as well as direct game sales via vendors and OS stores like Windows/Apple/Google desktop stores are doing very well for themselves. People like to be able to purchase games, and know that they will have access to them in the future, console/disc combinations are tied to the console platform, and game longevity ends with a scratched disk.
4. PC games are generally less expensive, when a game is released for Xbox/PS3/PC the PC version is generally $10-$20 less than the console versions. Mostly because the game developers don't have to worry about physical distribution, and don't have to share the profit margin with a brick and mortar retailer. Online retailers and publishers can make money at a lower cost.