Turbine complained:
"But I'm not buying a desktop with locked down components, the purpose of which is simply to drive upgrade sales of their HORRENDOUSLY overpriced SSD/RAM upgrades"
Then I guess you won't be buying a Mac again, eh...?
Unless, of course, you buy a Mac Pro for around $8,000 or so... and even then, your choice of "upgrade-ability" will still be extremely limited.
There will be "no going back" for Apple.
If anything, the hardware configuration choices will become MORE constrained as Apple moves the existing "Mac OS", into "Mac iOS" territory...