Reading comprehension. It's a good thing. I didn't suggest OS X is crap. I said it may be the best operating system for you, Joe Schmoe, and the guy on the corner, but if my business is centered around the use of ProEngineer, OS X is not the best operating system for me. ProE does not support OS X (http://www.ptc.com/WCMS/files/77552/en/proewf5.pdf), so if I replaced all the workstations in my office with Mac's, and all my business critical data is sitting in ProEngineer's format, I'm hosed. Ergo, it's not the best operating system FOR ME. Applying "simple labels" to define what's "best" in the real world does not work. I'm also going to strongly disagree with your comparison of Linux specifically to Hackintosh. One is not like the other. Now you're implying that anyone can buy $1,500 worth of PC hardware off the shelf, slap it together, and just expect Windows to work on it? That's not necessarily true. Sure, it's a reasonable expectation, but the devil is in the details. There is hardware out there with a shoddy reputation for working on Windows, much less anything else. There's older hardware that's not supported on the latest version of Windows, as well. So making a blind assumption whenever you're upgrading/installing ANY operating system or hardware is a bad idea, and likely to get you burned at some point down the road. If I want commercial support under Linux, I've got Redhat, Canonical, and a host of third party providers. Judging from the experience I've had with Microsoft's tech support in the past, I'm going to guess that Linux support is on par on a quality level as well (it's hard to get much worse). I don't have to resort to community forums if I choose not to. Which is more than I can say for hackintoshes. Psystar Corporation tried that. Apple sued them out of existence. PearC works in Germany, so far. If Apple decides it's profitable to sue PearC, and negate their legal argument that the EULA is a post-purchase restriction on the use of OS X, all Apple has to do is provide a copy of the EULA with the software prior to purchase. Poof, there goes PearC's argument and their business model. They must be comfortable with that. PearC can't do much to support the actual operating system, as well. If there's a bug in OS X? They have no access to the source code. They install an unmodified version of OS X. They can't provide the same level of support that other companies can. I can't see you getting much support from Apple, either. "Hi, I have a problem with XYZ in OS X. No, I didn't buy the system from Apple... I bought it from PearC... But they told me to call you..."