The 360 was always a fail compared to PS3 even at day one.
All the advertising and marketing pushed it out ahead but in the end, after just a few years, the PS3 is not only almost caught up, but the speed at which its overtaking 360 is accelerating. It already overtook it everywhere outside the US and in a couple years it wll have overtaken it here also.
The 360 isn't total trash, they've done a few things better then Sony but overall it's an inferior machine that was rushed to market on a tsunami of Marketing dollars and Red bull guzzling teenagers who were brain-washed into thinking it was the coolest thing ever. They are the same people who buy Cabbage Patch dolls and "Tickle-Me Elmo's" for $1000 because TV told them it was cool. The PS3 didnt' need an advertising blitz, the thing just works and works well.
I predict XBox is going to make another console within 5 years of 360s launch to compete again. And it will probably have a BluRay player in it.