seretogis - how about not having to reboot after using Win32 apps?
Seriously, though; I have to use Win32 a lot (at least until I find a WINE that does it for me), and while Linux is only a reboot away I find there's a lot you can achieve with Windows - a lot of the decent apps have been ported to it and are very usable...
And yes, I'm aware of the irony of saying Windows is a disadvantage because of the lack of Linux apps ported to it