After reading the whole thing, what really made it worth the time were the comments by M.Elfstrand. That really sums it up.
Many years ago I thought the same way Chromatic does. I thought people were just plain lazy not to build their own apps, used only FOSS although I never looked at the code or modded it or was particularly schidsoid about people putting backdoors, etc. I did that for over 20 years.
I switched from Linux and FreeBSD to OS X this year and I am never going back! I still use FreeBSD on my servers but for productivity, running my business, programming in PHP and MySQL I will stay with OS X.
In the past I had to waste time hacking the X Server and all those apps that would not compile because of dependencies or a port that had to go before another one. Now I just install whatever app I want and that is it! Multimedia, networking, wireless and all I need right out of the box. Even LAMP installs right away with very little tweaking on OS X.
If OS X is not for you, don't use it. And I would never defile a Mac by installing Linux or any other OS on it. Get a PC for that plus you'll save a lot of money.