I can identify. This is going to be the last console generation for me. Technically, I'll still have the PC but Starcraft 2 is the first game that I've bought in years.
For me, it's because, if I buy a game, I hold onto it forever. (This is why I'm judgemental on games. I'm pretty much buying it for the rest of my life if I buy it.) I still play Intellivision 2 games. The problem with this is that I've been getting the gradual feeling of "Yeah, I've played this before." I wouldn't have gotten into this generation except my friends ganged up and bought (and practically forced down my throat) a 360. So I decided to go out with a bang and get the PS3 and Wii so I'd have one generation where I didn't buy the consoles retroactively. Since then, the friend who was the biggest gamer (Used to have a gaming review site and did freelance game reviews for other sites back in the PS1 days. He also got me to do both for awhile.) has more or less dropped out of it with this generation. Other friends still play but not as much.
So I won't have a pack of friends prodding too much. I'll still play my old games. Given that I've completed about a third/quarter of them, I'll have plenty of stuff to still play.
With the extra time and money, I'm planning to become fluent in German. I'll probably also work on either becoming a CPA or studying to get back into computers. (Was in accounting. Then went into IT for 8 years. Few years back, I went back to accounting. At some point, I should really commit to a path.) Perhaps I'll start traveling again. Before I stopped traveling, I saw every state in the Continental U.S. as well as parts of Canada, Mexico, and a good chunk of the EU countries. Might be nice to get back into that or, at least, see Hawaii and Alaska so I can say that I've been in all 50 states.
As well, I've not been happy with a lot of the developments in gaming. This former "FPS games should only be played on PC" gamer has been pretty much driven out of the PC market by DRM. The move to download-only games is a trend that I will not be on board for. XBLA games, sure. DLC if it's worth it. But not having physical copies of retail games? To hell with that.
So I can understand the desire to put aside the games or, at least, drop out of the gaming rat race. As we grow older, our priorities change. I was at CyberCon when Michael Stackpole gave a speech on the roleplaying fanbase. In it, he pointed out that a large percentage of the fanbase just grow out of it. At the time, I remember thinking to myself that I'd be the exception. A year later, I was almost completely out of roleplaying. With video games, I will have a LARGE selection of older games to ease the transition so I can't see myself having any trouble dropping out.