If you like a system where the best games currently out are an overrated, monotonous third-person shooter, a soon-in-coming rehash of an ill-concieved sequel and a soulless racing game, get an XBox 360. I don't care for online gaming. I prefer a system where the developers of exclusive titles actually have the talent and dedication to make more than a mediocre 8-hour experience and rely on online play for depth and replay value. The XBox has only had like 5 or so such titles, ever... Jade Empire, and the KOTOR and Elder Scrolls games. The Playstation has had infinitley more in the same time frame, Final Fantasy series, Metal Gear Solid, Gran Turismo, Okami, God Of War, Shadow of the Colossus... I could literally name two dozen more games like that.
But I guess Sony is just full of empty promises for the future. As if Gran Turismo, Metal Gear Solid and Final Fantasy (two of them) games aren't even coming. And before you belittle four games, realize that there's at least 500 hours of gameplay between them. Not to mention there are other games on the horizon.
It's why I don't care for the XBox 360... I don't like waiting around for maybe one great, deep standalone game a year while Sony releases a handful in the same timeframe.