Are people in education really the target market for Apple's most expensive laptop? :)

The problem there is that Google will likely release an updated Chromebook Pixel soon, also.

With coreboot enabling installation of Linux on the Pixel for developers (And stock ChromeOS for regular users, of course), there is no reason to prefer MBP over the Pixel.

Also, older MBPs are still more than usable. I'm tying this on a 2012 retina MBP with 16GB RAM. There's really nothing I can't run comfortably on it. Even when they rev the MBP, there's still a ton of people who've bought retinas in the last 4 years for whom it will make no sense to upgrade.