You got Xserve, OS X server and it is certified UNIX putting it to AIX league. You got a developer culture who does things different, simple looking complex stuff.
And your idea of "cloud" is, putting "very expensive" HP servers next to eachother.
Compare this to Virginia Tech supercomputer which was built on ibm g5 (ppc970) clusters running os x/xgrid and you will understand what kind of harm Intel switch did to the company culture.
Of course Intel was way to go in portable future but these kinds of side effects really bothers you.
Apple was a company who insisted their factory, inside look beautiful and now they aren't really different from other guys.
Hopefully, at least, they run FreeBSD but not betting on it.