I don't own any Macs, but my next computer will be a Mac. It's more than a fashion statement.
Linux still doesn't "just work." If it does "just work," it's probably because you have old hardware. Linux will probably never be ready for the desktop unless hardware stops changing.
Microsoft? They've completely crossed the line with Windows 10. They're trying to make it like a big phone with invasion of privacy and telemetry. Microsoft has abandoned power users. I suppose gamers still need to use it, but they're giving up a lot.
Chromebooks aren't made for power users and are glorified web browsers.
What's left? Macs. They have good support, a desktop that works, and are based on BSD. Since it's not really a gaming platform, having the latest and greatest specs aren't that important, but generally they have solid specs. Expensive? They retain their resale value. I wish I could get rid of my 2014 Asus Zenbook even though it's really fast. Windows 10 is horrible and the drivers are constantly breaking when there are updates. I doubt I'd get a fair value on eBay or Craigslist, and I don't want to expose myself to fraud and/or idiots.