Quote from JetsetlemmingPeople don't have a problem buying TWO WHOLE VIDEOGAMES within the same time span of each other, especially when both are AAA "must have" products.
No, not 2 games, but consider the release list of this past fall:
Gears of War 2
Call of Duty: World at War
Fallout 3
Mirror's Edge
Dead Space
Left 4 Dead
Far Cry 2
Fable 2
Resistance 2
All released within about 2 or 3 months of each other. And those are just the bigger, more anticipated games by the general lot of gamers. Not even going into any 'demographic' nonsense, if you wanted to argue that, they're all after a very similar piece of the pie, shooters blah blah blah guns.
Also worth mentioning, all the original IP's on that list, save for Left 4 Dead, were said to have 'underperformed' by their publisher (Mirror's Edge, Dead space). Hmm, I wonder why? It certainly wasn't a quality issue, in my opinion...