I worked with Macs for three years in college, remember. They were very good, especially the one hooked up to the 24-48 track digital surround sound mixing desk with full Pro Tools HD capabilities and Genelec surround sound monitors (I really should've stolen those when I had the chance).
But when they decided to go wrong or even not work properly ever so slightly, then you were borked. And then you had to wait for an hour until the technician man with the special licence from Apple to turn up and sacrifice a small goat to please it and make it work again. Of course, that's just how it looked from my point of view.
It is simply a case of how you like your computer to work. I like to turn mine on and use it. I feel that a Mac is like a bureaucrat - you have to fill out constant forms before you're allowed to use anything that you've actually paid for. But then, maybe that was just Pro Tools... But, I've made my mind up, and that's how I see things.
And I don't like brushed aluminium cases, anyway...
They couldn't have been Macs, as they always work.