If it werent for MS, we'd be using much less powerful hardware than we do now. Like it or not theyve played a huge part in what we're using today, even if a person choses another OS.
As for PC sales, that's a budget/recession thing as much, or moreso than a trend switching. Cheap/nasty phones and slate devices are more affordable to many people than a new computer (not to mention that a typical pc is as powerful as the phone/slate morons need, ergo they may not upgrade as frequently as they once mightve). Generic PC sales still outnumber apple pc sales by a massive margin.
Personally I dont care what people use, but this need to see others fail is sad and pathetic, and more than a little tiring. I visit amiga sites to read and chat about amigas, not to read about others delusions.
Also, "Micro$hit"?? Seriously? What are you, 12?