I am keeping my Mini too. Gotta start saving for that Mac Pro I'm getting in the next 5 years.
I think Apple knows they're always going to lose on the price point of these things, but it has been something they've been doing since the first Apple computer and it works because it puts money in their pockets and not in just the companies that make their chips and screens.
Google and Samsung could exit the tablet and cellphone business, and Android altogether, and it wouldn't put but a dent in their profits. Google has search, ads, and services, and Samsung has toasters.
Apple would be goners if they weren't making portable devices. And while they could focus on education and business, it would be a weak move when everything has become more mobile, and people have less of a choice in what hardware they can use.