I pretty much have the same sentiment as above. Why do I need 570 new 'features'? I can only think of a few programs that I use in XP; remote desktop (for work), ms office (again, for work), visual studio (work)... thats all I can think of.
All of the other main programs that I use on a daily basis (EditPlus, uTorrent, Firefox, Winamp, Alcohol 120, CuteFTP, iTunes, PowerDVD, Adaware, Spybot, WavePad, etc) are all free downloads (well, sorta free

).
I would be willing to pay $300+ for a new version of Windows if it did the following:
1) Got rid of all of the unecessary crap that XP has.
2) Took OUT all of the 'added functionality' of windows explorer. That means no specialized views for viewing folders with different media (I really hate that).
3) Make it more stable (not that bad right now, but could be better).
4) Make it run faster. This means get rid of all of the extra services that users don't need. Even just give users a more user-friendly way of deactivating anything that takes up resourses (along with a description of what each windows process is).
5) DX10 (the only reason I will eventually have to get Vista, also the main reason they left it until Vista I bet).
Thats it. To me, it seems that they could have accomplished all of this with much less effort and in less time than it took to make Vista.
Actually, I would like it if they could just change $100 for DX10 and let me run it on Linux. That would be sweet
