Moreover, XPSs have a screwed-in battery and replaceable keyboard, which would make restoring and reusing the laptop much more viable. With macbook, if you keyboard is broken, you trash half of the laptop, including the battery.
Nothing in the XPS 15 is glued in place. I'm literally using a laptop that has a screen from 9550 (4 years old), battery from 9560 (3 years old), motherboard from 9570 (2 years old) and other parts that I've accumulated randomly while upgrading my laptop from 9550 to 9560 to 9570.
And the parts that I wasn't using after the upgrade I've all sold to other people who had their mobo or battery fail. Nothing was wasted.
All this and I've got a pretty slick looking powerful laptop!