Still on your campaign I see.
No one needs to change to W7 if they do not want to, it's a personal choice. Stay with XP or Vista I say if you are happy with it. We also do not know the pricing structure yet for upgrades from Vista and XP so lets see shall we.
I and many others like me have had a very good experience with Vista and W7 is based on Vista as you acknowledge so it's funny how one can be a sows ear and the other good. I happen to agree with you that W7 is almost Vista SP2 (or 3).
From what I have seen the noisiest voices have come from small system builders who are fed up with folk complaining that a printer or whatever does not work with Vista. It was always the case and was with XP, not all manufacturers produce updated drivers so I can see why for system builders advising staying with XP is safer......for them.