I added Apple to my hardware selection of Linux boxes back in 2003.
I like Apple hardware and the new MB Pro is very neat. The huge touchpad, the awesome keyboard and the retina display are are all very neat things. However, after getting an iBook G4 back in 2003 (cheapes Subnote available at the time), a Mac Mini (cheapest mini PC available at the time) a few years later and an MB Air in 2011 (only ultrabook available at the time (the class "Ultrabook" didn't even exist yet), my new machine will be an generic netbook without any OS preinstalled. I'll install linux on it, as usual with non-Apple hardware.
While Apple is quite neat, I'm increasingly wary of the Apple golden cage and their lock-in. Apple pay built into the new MB Pros doesn't help. Also, Apple products arent' so stand-alone innovative as they used to be and the prices have risen. My new machine, coming this week, will be a 300 Euro Netbook with a quadcore CPU and 10 hours of battery time. Vis-a-vis a minimum of 1700 Euros for the new MB Pro that's just to huge a gap to justify the expense.
Another prime reason for me to get an OS X machine has disappeared: I used to do professional Flash development. Since Flash is basically dead and it is the first and last prorpietary non-FOSS technology I've ever invested time in, there is no reason for me to keep a system around that runs the Flash IDE. Linux is as flaky and obscure as ever, but it hasn't gotten worse and Java (for my Jetbrains IDE) and Web (for everything I develop today) work just as fine as with macOS.
Homebrew and other FOSS macOS projects such as iTerm are very neat too, but I still trust compling on pure FOSS OSes more. On my MB Air I'm still running Maveriks, and brew starts complaining about the outdated compiler. Since the MB Air is a little to weak for El Capitan, I'm slowly getting stuck between a rock and a hard place with this.
I might get an MB Pro again some time in the future, but it would be more for kicks than anything else. They build nice machines, no doubt, but Linux for Pros and ChromeOS for n00bs cover 99.99% of the markets needs and costs roughly a 5th. And with Linux I'll be in control until the day I die. Or at least longer than I would be with Apples neatly bound hard- and software packages.
My 2 cents.