That, plus there are _enough_ open source tools, utilities and applications having the same purpose as many Windows applications, e.g. OpenOffice which pretty much gives everything needed to the *average* Word/Excel/Access/Powerpoint user.
Heck, I always disliked MS Word interface via Visual Basic. I tried to do some pretty advanced document-generation with it and it just too cumbersome to my liking. Doable, but it just felt bed. I tried recently to implement the same thing with OO Basic and it was actually easier, even with sometimes inadequate documentation. So even for a non-average user OO.org has benefits (did for me).
CHeers, Kuba