There are probably a lot of people like me on HN who _need_ a unix box to do their work, and the various Macs are still far and away the best general purpose unix boxes available (best chassis, best peripheral compatibility, best (o|O)ffice software compatibility).
Now that Google Docs and Office 365 are "good enough" for most things, I would probably be happy to go back to Linux if there was a Linux machine that had comparable build quality yet was a bit cheaper than a Mac.
