I was really iffy about dropping $40 on Fallout 3. I thought it looked too similar to Bioshock and that such a similar game wasn't worth that much. One time I was in Gamestop and it was on sale for $15, I thought screw it, bought it, turned out it was incredible.
Turns out unanimous approval is unanimous for a reason. Unless it's Call of Duty.
Also, I hated Dead Space. The scares were boring, the shooting was boring, the story was boring, the atmosphere was good, but not good enough to carry the incredibly boring game. Doom 3 was scarier, had a better story and was all around a lot more fun than Dead Space.