If i may express my opinion; I don't believe this is a question of..' you're either with us or against us'.
at the moment i've got three working laptops:
The on i'm on at the moment has vista, great for casual use - easy on the eyes - plays most games i can think of - the usual good points, plus it's never died more that i can handle so i've not really had any bad experiences with it.
One laptop has XP, that's also not died more than i couldn't handle - but i use it for more practical things finances, spreadsheets, databases. to me it just feels more like a work computer than a home PC like vista does.
and the third one has Mandriva Linux - For a couple of reasons, not least for the specs:
1.2Ghz single core CPU
No HDD
512 RAM
no mouse
and more than it's fair share of knocks, bumps, drops etc.
If you could get vista, or any other windows OS, to run on that i'd eat my own face. But i use this one for programming, mainly C++. To me it just feels more like a programmers OS.
FB