Of course you get to play with a few extra's, namely textures nearly free of charge, and vectorised graphics nearly free of charge (at bloody long last). All new and useful features, granted, but not of the sort you need the latest in GPU performance for. Unless, of course, your fancy runs to eye candy.
Like Minator said better then I did "In other cases the "eyecandy" is just visual cues - i.e. they are there to enhance usability."
Offcourse this could have been done with plain 2D/bitmaps but vectorised graphics, as you point out, is one of the other reasons to make it 3D. I might be wrong but I believe GPU are faster at drawing 3D then 2D. (You know what I mean)
But like I said, Vista is faster (at beta stage) then XP is. And that is compared to XP without the themes service running. Sure it stil is windows but it I find Vista much nicer to work with then 2000/xp
I guess I come over as a Windows fan boy but honestly, I never really liked XP. It's as bad as most Amiga user make it out to be IMHO but Vista I like to use.
My "beef" is that people shout eyecandy OS, while it's hardly that at all. If anything, XP is the eyecandy windows with al its bright colors... :lol: