Of course. I understand that. But what will you (and others) do if one day Apple will announce, that they will not make computers anymore?
That is why I am trying not to be dependent from one company.
That's an irrelevant issue for two main reasons:
1) It's absurd. Apple won't suddenly stop making computers anymore for a million and 1 reasons.
2) You're not being dependent on Apple (or MS) anyway. Your workflow is really dependent on the products from other parties. The fact that you're even considering more than one platform shows this. There is nothing to stop you from jumping back and forth unless you're using a really specific product. A PSD is a PSD. An OTF font file is an OTF font file.
To address your original question: as many have said it's about history and proven track record. For a LONG time, the Mac platform was far and beyond the best platform for creative production. Largely for technological reasons and innovations. Take a look at Apple and Adobe's history. Postscript development and Adobe Illustrator. Photoshop's historyit was originally invented on a Mac by a student and was Mac-only for the first 4 years. Quark Xpress, which was a revolutionary app for page design, started on the Mac (and I've yet to ever see it running on Windows machine, even though it exists).
It's easy to say "I can run XYZ on my PC..."
now. But for the longest time, these premiere apps either didn't exist on windows or weren't as good as their Mac counterparts. Windows has been playing catch-up in this industry for two decades.
And the last thing to note is the cultural differences. Windows and Mac OS are very much reflective of their parent company's culture. People who want to work (and will succeed) in the creative industry tend to notice and appreciate the little things. Macs have a style, an attention to detail. It says "we cared enough to think about this." It resonates with like-minded people. They like having an OS with a million little touches because it motivates them to take as much care in the product they're producing.
Windows for the longest time has felt like a programmer's OS designed by a programmer (have you ever used Windows without ClearType?). Windows has historically focused on being able to go from point A to point B. And not giving a damn about how you get there.
...asleep yet?
😀