Fact of the matter is OSX 'just works' better than anything else _I_ have personally used. Less hassles, less issues, less crashes than linux or windows. And when you have lots of people saying the same thing, its not 'high ground' its a result of having a unix based OS that you don't have to waste your time to have it work.
I switched to OSX after using linux as my primary OS for about 5 or 6 years, and the big difference for me was that I didn't have to spend valuable time actually getting osx to work. Linux is amazingly customizable which can be great, but when it comes to getting work done all I care about is having a terminal, vim, and being able to run a local server to test my work. Anything else that I have to configure is just getting in my way.
Edit: As much as I like OSX, there is only only app that I actually require that is OSX specific, and that is quicksilver, which for me completely changes my workflow and allows me to productively use a 13" laptop as my primary development machine without the need for an external monitor. I think also goes to show my point, that OSX doesn't necessarily have any spectacular features or applications that draw me too it, but really its the fact that it is a unix based OS that I can use without hassle.
I switched to OSX after using linux as my primary OS for about 5 or 6 years, and the big difference for me was that I didn't have to spend valuable time actually getting osx to work. Linux is amazingly customizable which can be great, but when it comes to getting work done all I care about is having a terminal, vim, and being able to run a local server to test my work. Anything else that I have to configure is just getting in my way.
Edit: As much as I like OSX, there is only only app that I actually require that is OSX specific, and that is quicksilver, which for me completely changes my workflow and allows me to productively use a 13" laptop as my primary development machine without the need for an external monitor. I think also goes to show my point, that OSX doesn't necessarily have any spectacular features or applications that draw me too it, but really its the fact that it is a unix based OS that I can use without hassle.