Apple is user-friendly first. Developers for Apple technologies come next and all other developers who like the Unix environment of OSX come next. The only reason I use a Mac is because the computer is very well built, fast enough, and runs an OS that's Unix-like enough for my needs.

The fact it's not Linux is the reason I routinely use two other laptops, one with Ubuntu, one with Fedora (and a big Lenovo box that runs about a dozen VMs).