I would think that someone with such a low UID and [assumed] broad experience would have a little more insight, especially the "no one uses Macs for business". There are a lot of businesses that would chuckle about that, starting with one of the world's most profitable and valuable businesses (on and off).
You can add to that practically everyone in the entertainment media creation field, especially in LA. Forrester says almost half of enterprises with 1,000 or more employees are issuing Macs. Macs are the default choice of many Silicon Valley startups and larger companies like Google. Some CTOs even make fun of the last Windows holdouts for using a "typewriter".
I work for a giant media conglomerate which four years ago forbade Macs from entering the IT system, but after a great deal of upheaval from the top, IT has been told to shut up and deploy Macs, now present as some 30% of new machines. The greatest "ecosystem" Microsoft has are the IT admins who don't know of or won't examine anything else. Those days are ending.
The Mac is not "an obscure also ran" since more than half of new Mac users come from other platforms... well, one in particular. It's more of a refuge for the many millions of people who are sick to death of Windows. Just having Macs in my workplace side by side with Windows machines is driving many users to ditch their home PCs in favor of Macs (some of them Hackintoshes). None of them would even consider a Linux machine. The Mac is now what Linux wants to be.
Microsoft had become quite lazy under Ballmer. Anything a competitor did, Microsoft would release a half baked lookalike that generally really sucked in a number of ways. Microsoft's belief is that they would automatically prevail because the competition (usually Apple in this context) was an obscure also ran. After having their asses handed to them over and over, they're finally getting it.
The best thing I can say about Microsoft's foray into the tablet and advanced phone world is they're the only ones not blatantly copying Apple. That's turning out to be a mistake but I don't think they could have won if they had copied Apple. The tide has turned against Microsoft and once the legacy has worn off, they're done unless they come up with something totally new that nobody can live without.