What I find great is that, at least for the business models, they offer service manuals that describe everything you have to do to change any part (from RAM to CPU).
I used to do routers/networking for a shop that was an Apple certified service center. The amount of teeny screws the techs had standing up on the magnetic bases was simply dumbfounding. With just the cases off, there was already a forest of these things similar to this: http://img.alibaba.com/img/pb/469/933/263/1282659625153_hz-c...
A couple of times someone knocked over one of those things and it was a disaster of crawling around on the floor for 60 minutes.
I can probably service my whole ThinkPad notebook with < 30 screws and 30% of the time.
