I usually know what games I'm going to buy, way before they even release. Reviews factor in, in the rare occassion that I don't want to be there day and date. Like this year, I just know I will pick up Darksiders 2 and XCOM: Enemy Unkown. No matter what.
A game, which has thus far shown absolutely nothing to make me go 'I want that!', is Medal of Honor Warfighter. It could be right down my alley, and I'm in the market for a more arcadey modern military FPS game than Battlefield 3 - but lest there's going to be a multiplayer demo, and it being plain more fun than BF3 - there's nothing, not even great reviews, which could sell me on the game. Maybe great word of mouth - fat chance that's gonna happen with all the hate inherent to being just another modern military shooter and an EA game.
What about you guys? Which game could be right for you, but just doesn't quite tickle your fancy enough, to even mildy interest you at all? A game that actually might get your purchase, if you played a demo and loved it?