I think I've said it before here, but hey, its worth going over all this again.
I used to play WoW quite a bit. I was a in raiding guild (2-3 times a week, depending on everyones schedule), I had many alts, and I probably spent as much time playing the game on a weekly basis as I worked (part-time) and went to school (part-time). A lot of my real life friends (at the time) played...in fact, at one point, we were all in the same guild, and even got together on occasion in real life to go to like Applebees or the like. But eventually I got tired of it, I asked myself "why am I doing this?". I had a 67 Tauren Druid and a 28 Blood Elf Mage, and I just quit in April of 2007. I then tried playing EVE Online again, and after two weeks, I quit that too. Then there was a period where I didn't play any games except for GTA:VC, but I had already beaten that game and I played it just to cause havoc. In a way, WoW made me no longer become a gamer, or at the the very least, a downgraded version of what I was before. I grew up in the 90s, and played such games as Chrono Trigger, Sam & Max, and Masters of Orion 2, just to name a few that I can remember off the top of my head. I was a console and a PC gamer, and I basically spent all my free time gaming. So WoW did something to me. I'm going to try to be a gamer again sometime soon, but not the same way I was: I wont work and do other things around my gaming, I'll game around the more important things in life.