I'll get a 360 eventually, for Dead Rising more than anything else, and pick up Sonic Next as an afterthought. Getting a PS3 is just not practical for the price, large degree of suck, and additional attachments required for backwards compatability. Next summer I can get a job as a lifeguard for $1000 a week, and will blow around half of it on 360 stuff, though that's behind getting a PS2 in priority. It also depends on whether I have another job at the time, because then I could put some money in my college fund and have some spending money. Hopefully when I do buy my 360, there will be some more decent games out (like Banjo-Threeie).
Most of what people were saying about Sonic Next was bad in that it has the same problems as the Sonic Adventure series (bad camera, oversensitive controls, etc.). I think I'll give it a chance though, because if you don't expect anything, you're never dissapointed.
For now, I'm more likely to get WIld Fire, though.
Also I hope that my 360 doesn't crash.