Not to hijack the thread, but I have PAID to switch computers from Vista back to XP (paid for the XP software).
Aside from Vista's performance-robbing/silly eye-candy, the technical and usability problems are very real.
I still have one Vista PC, because there's no video driver for XP (considering buying a new video card so we can dump Vista totally). I use this computer for photos and video.
Vista is notorious for slow file operations, such as I ran into yesterday on the Vista PC. I started a folder move -- using Windows Explorer to drag it to another top folder on the same drive. The folder had a few thousand files, but even so, since it's just a folder change on the same drive it would take less than 5 minutes in XP (which I proved to myself by doing the same thing on an XP computer). But in Vista, it was "preparing" for 10 minutes before I realized I didn't name the new folder correctly. So I clicked Cancel, which in XP would stop the process immediately. In Vista, it took well over a half-hour to cancel the operation it was "preparing" -- not one file had yet been moved. I'm not kidding -- more than 30 MINUTES TO STOP DOING NOTHING! Not believing my eyes, I did the same thing again -- started a folder move, then clicked Cancel. It again took a half-hour or so to "stop". When I eventually got the folder name I wanted and did the move for real, it took more than one hour, not XP's 5 minutes. BTW, this is a Core 2 Duo system with 3GB RAM and nothing else notable running on it (UAC long-ago shut down), and a MOVE on the same drive involves changing Windows internal file table, it doesn't require moving the actual files' bytes anywhere -- so why is Vista so slow? Some reports say the brain-dead security system is the problem.
No Vista for me. I'm one of the early signers of the InfoWorld.com "Save XP" petition, which now has hundreds of thousands of signatures.