Whenever I feel like that about a game I should like, I ask myself if I'm having a small bout of game burnout. That's when I take a hiatus/sabbatical from gaming and hopefully return with fresher state of mind.
Basically, sometimes the fault lies not with the game, but the gamer.
This is true, but...
7 months or so later and it's still no use. Gotta know when a game is not for you.