Want to pop an off-the-shelf SSD into your Air? Not gonna happen.
http://eshop.macsales.com/shop/SSD/OWC/Aura_Pro_Air_2012
The proprietary screws and integrated battery mean you can't remove the potential to stop the damage before it happens and then clean things up yourself.
I wish Apple would support the mSata interface. A lot of other manufacturers do, the drives are tiny, and you can get them in capacities up to 480 GB now.
Look at things like the Power Mac G4 - amazing design, really lovely internal layout, really easy to change anything.
I have no idea what Apple's equivalent product is today, but I do know that changing anything is harder, and that Apple is keen for people not to modify anything.
That's okay. Homogeneous install base makes support much easier and better. (Compare to blue-screens on Windows caused by shoddy graphics card drivers provided by vendors). But it sucks for people who know what they're doing and who want to make changes. Apple products are expensive, and not everyone wants to change machine every 1.5 years.
As opposed to just about anywhere else, which will have standard screwdrivers. Visiting another office? What do you mean you don't carry around your pentalobe screwdriver?
Because that doesn't seem right at all.
I believe the exact opposite is true for the two MacBooks my wife has owned.
If you want to terminate an RJ-45, then sure, you kinda need an unusual tool to do it neatly and properly - it's an unusual item. But a specialised tool to undo a screw? Yuck.