I'd consider picking one of these up if I thought I was going to stay in the Apple ecosystem. As it is, my iPhone 6s and 2010 MacBook Pro will continue to get me through the next year or two, after which I may very well migrate to Debian Linux.
Even if Apple does an about-face by next year and releases a Mac Pro and MacBook Pro that interface properly with people and their peripherals, that don't have a half-dozen quality issues... I still don't know if I would stay. I expect my hardware purchases to last me 5-10 years, and I will not throw my lot in with a company that keeps jerking its customers around.
Buggy software and buggy hardware used to be something you came to Apple to get away from. Sadly, Apple's reputation is far removed from what their current offerings are. (Not to mention I've had my eyes opened of late regarding the true cost of the walled-garden society. Little encroachments now make bigger encroachments more viable later on – and we're not just talking technology, here.)