In my view, M$ Win technology has started to out lived its usefulness. I agree with the post about cost. Many companies are sick of the cost of M$ upgrades. In my view, (an naive view) I see it this way.
Apple took a risk to divorce the technology they developed from the earlier finders (..6,7..) and OS 6,7,8,9. In this bold move, to make a modern OS, they did the right thing. Taking advantage of the best of Unix, in my view is the way of future OSs.
M$ in my view, had a big hit with win 95, since then they have been trying to capitalize on that technology. I believe it has out lived its usefulness. The way people are using computers now and in the future; M$ is losing.
I am not in the business world, but in the education field. Our school district uses Macs, and love them. Even older iMacs are very useful, and the costs is manageable. This is my simple view.