with such relative high minimum requirements,who is gonn abuy it,
don't get me wrong but what are all those millions of pc user who use systems like p4 1.4GHz do.
i bet compared to the number of pc users who have pc with 1.4 to 2.8 ghz processer are far greater in number than those who have 3.0GHz
and most of them won't buy new pc's until there existing ones are obsolete.
the point what purpose will vista serve.
and the last point is apart from security(which obviously microsoft is under pressure to perform) how does it fare better than xp or ny how much percent is it better.
in my opinion many wouldn't prefer to change the OS unless it offers better performance compared to XP.