@gme @stefano I don’t think that’s entirely fair — I kind of see your point, but the difference is that you can in principle find someone else who can manage a FreeBSD server or even an OpenBSD one. The pool of potential sysadmins might not be huge, but it’s there. It’s not at all the same kind of vendor lock-in as Google or Microsoft.
(You’re right, though, that there is a value in choosing a more widely-adopted system. But it’s not unlimited value otherwise we’d always just have to choose Google or Microsoft despite the lock-in; there’s also value in it being open and documented.)