The 360 doesn't seem to offer anything special compared to a high-end PC, unless you wanna continually pay for Live and premium downloads. It's a very specific PC.
Viva la Revolution! This, I feel, will be the only next gen system that will stand out as a gaming console, just like the good old days.
It seems like we've come full-circle. Prior to consoles, there were PC's marketed toward gamers withe the C64 and Apple 2 and so on. In the middle of the curve PC's and consoles offered very unique experiences, mutually exclusive of one another. Now in the seeming denoument, consoles and PC's are intersecting once more with the 360 and PS3. If the ingenuity of Nintendo doesn't hold, I fear a gaming apocolypse similar to 20 years ago.
Just my thoughts.