Let me make a few comments about this subject that I have observed over the last 50 years.
First off - most businesses use Windows POC's rather than Macs. There are a few types of businesses that favour Macs, but by far the majority use PCs and Windows simply because the business world used DOS and the Windows way back when.
As to sales data - the company I worked at for many years, global in nature with around 100000 employees worldwide used to use Macs when I started to work there and after a few years switched to PCs.
The only reason was the initial procurement cost, a decision by some executive but nobody at the company later wanted to owe up to because the longer term costs to use PCs ended up much higher than when the company used Macs.
For example, at the division I worked at with about 2000 employees, in the "Mac era" we had one support person who looked after all the Computer (probably about 1000) at that location as well as after the PBX (telephone system). After the company switched to Windows PCs, that division alone had to hire three more IT people so they could try to keep up with the issues that needed to be addressed daily.
I remember people coming in in the morning, booting up their PC and then having a leisurely coffee for 15 to 20 minutes and when they returned to their desk, the PC was still booting. I also remember having to wait until after lunch before an IT person could come upstairs to see what was wrong with my PC and why it wouldn't boot up. During that time, productivity was in the toilet - this was a "high tech" company and we depended on the use of the PC on an ongoing basis.
As to the sales numbers - when we switched to PC's, the company ended up buying new Dell machines every 18 months or so, Macs before that were "refreshed only every 3 - 4 years.
So all in all, the switch from Macs to PCs was a bit of a fiasco and there was a lot of push to go back to Macs.
However this was also the time when it looked as if Apple was going to go under, so the PC's were retained.
And the comment I made earlier about my observations on the train.
Turns out most people that take the train are either young females, college age and older people - for their private use they mostly prefer Macs even at a higher price.
Most people I know who use PCs personally are male, middle aged, and they usually drive instead of taking the train.
The problems I described earlier that we encountered with PCs was ith early versions of Windows, things are obviously much better now.
However, I'm still amazed how often I have to wait on line when speaking to the support organization of some company while sthe support person is apologizing because her PC crashed and she is waiting for it to reboot. And every time I ask, the OS they are using is Windows.
