I don't really understand this
Nor do I. Just bad timing on the exact model.
Mine is upgraded to max RAM, HDD still original, but a 5min job for me to upgrade it (plus reimaging/reinstalling).
Apple decide what models their new OS can go on, not the user, so mine can only be upgraded to whatever came after Snow Leopard.
It'll more than happily run Linux, Windows 7, Windows 8, etc. But Apple decide it's too old to run the latest release. Or not shiny enough.
Sure it still runs, but stuck with 2-3yr old OSX feature set. Or the latest bleeding edge Linux.
When plugged in to the mains of course
I am of the view that Apple kit costs more but is of far higher quality (screen etc)
Not IME. Bought mine cos it was €10 less then the equivalent Dell. Screen - yes very good. Mechanical build quality - no better than any other laptop I've used. External lines, the way everything lines up and feels solid - yes, better, but inside, it's just like any other laptop.
it will last longer (hardware and software)
Again - not IME. Lappy yes, battery hahahah. I nly used it like you use a laptop. Charge it, use it, charge it and use it a bit at the same time. Then 0% battery left. Straight from 99% to 0%, without even a slow degradation over years. Wasn't even the batch where they had to do a firmware update for the battery.
See above for Software - Apple decided I could no longer keep it up to date after about 3 years.
after 2 or 3 years you can sell it for 30-50% of what you paid for it when a windows machine is going in the bin
Anyone want a Black Macbook, 2 knackered batteries, no HDD (I'm keeping that), got install discs for Tiger, upgradeable to Snow Leapoard+1?
I'm guessing, probably not.