Yep. In addition to it being in short supply until march, 360 sold pretty meh I think through the doldrum months. It sold like an Xbox. I remember the arguments.
It took off in November of that year if I remember right. PS3 was so shitty.
The 360 really benefitted from the perfect shit-storm of one year headstart, PS3 being too fucking expensive and basically lacking in quality games (not saying it had none but it only had RFOM) until Uncharted, that and multiplatform games were running like shit on the PS3, basically everything that could have gone wrong for the PS3 did go wrong, that's just not going to happen this generation.
Not having the likes of Allard, Robbie Bach, Fries and Blackley running the show basically reduced the xbox division to one that really lacks a cohesive vision of how to run a successful, self-sustaining console business, but instead a group that is trying to shoehorn a money-making scheme (NuAds) into a device.