Re: less repairable / upgradeable than ever
"I currently own an 11" MacBook Air. I don't see that it could be made any less repairable."
What on earth are you talking about? The MacBook Airs might be Apple's most repairable products, possibly tied with the Minis.
If you have the right screwdriver (which costs a couple of dollars from iFixIt) then you can pop the bottom off the MBA in less than a minute, then it's a trivial matter to access/remove/replace any of its relatively few parts (battery, SSD, wifi card, etc.). Easy access to everything, nothing is glued in, etc.
I owned several PC laptops before my current MacBook Air and they are all MUCH harder to disassemble/repair. I wonder what on earth you're comparing the Air to if you think it's hard to work on?