If it's true that the younger generation is flocking to Macs in droves, then it would be deceptive and ill-advised to say that 9 out of 10 people right now use Windows, and that's the way it will stay.
I think MS is fighting to avert a disaster that will happen 5-10 years from now. This seems wise, though as a Mac user I have to scoff a little bit at it ;)
(Windows can do more than Macs, but lack of integration and poor UI means that most of its users don't.)
Then they realized people switching were happy with just OS X and the cross platform available titles....
crickets
Anecdotally, the only Mac users I know who run a VM at all do so for IE testing, or occasionally for some other UNIX variant. Then again, i don't know many people who are super hardcore gamers.
I've found that any Windows software I need (i.e, some software to capture a stream or a uTorrent-equivalent client before uTorrent was available...), there's an equivalent version on the Mac.
I do still use a Windows machine (and have worked on a Windows machine from XP, Vista and currently Win 7 Enterprise) - but personally, I have no need for it. Although, honestly, I find Windows 7 quite nice.
It's hard to argue with tens of billions of dollars.
Is this really true? I was under the impression that Macs constitute at least 15% of the market (at least in America)