Often I'll start playing a game, get into it, but due to other distractions, be it work or even social reasons, I'll not get to play it again for a few days. It's hard to get immersed in a game when you're playing it in such a stop-start way.
This is happening for me with Metal Gear Solid 4. It's clearly a quality game, but since I bought it I've been pretty busy, and it's not the kind of game that lends itself to the stop-start style of play I mentioned. Especially with all the epic cutscenes and long-winded storyline. Fuck, sometimes I just wanna play Tetris.