Actually, I'm hoping I can hold off. Despite having spent the money to get all 3 consoles (and a good number of games for each), with my current situation I just don't have much time to play games. I'm only now getting around to playing great games like Metroid Prime, GTA: San Andreas, Otogi, etc. At that rate I'm going, I'm hoping that the 360's library will be well established (and possibly even the PS3's and Revolutions libraries as well) before I'm looking at buying one. I'd love to be able to wait a year or so, hopefully after the first price drop, and be able to buy 3-5 AAA games on the same day.
Of course, I'm sure all of my friends will completely ruin this for me by buying their 360 at launch, signing on to the new Live service with whatever killer launch game the system has (even if its only 1 game thats any good)... then they will gather round my house for a candlelight vigil, chanting "buy it, buy it, buy it" until I finally do.
But then, if they didn't do that, what kind of friends would they be :lol