OS X sucks, for hardware support.
OS X sucks, for file management as it actively tries to fuck with the data and case insensitivity, problem residing in the OS and the file format that OS X provides
You could argue that OS X sucks for videogames, but then again other OS that aren't windows sucks for videogames not because they suck at videogames but suck because of not being supported by developers at all, although that might change later on.
OS X lacks the special proprietary software that actually has worth mentioning. Some of the software OS X uses are ported software from Linux/UNIX/whatever or Windows
It just SUCKS, both hardware and the operating software it provides.
I can see why some retard want to use windows because videogames, I can see why someone want to use Linux because it's free and it just werks.
But OS X, I don't see the point much like you do, other than branding.