>There was nothing stopping other enormous companies to compete on quality and customer service, but they decided against that.
I mean, are we pretending that Microsoft also isn't a trillion dollar company? They are the only one with an incentive to do that strategy, but they probably got a good share of money from licensing their platform to other OEMs.
The next closest thing to "full OS vertical integration" are game consoles. Specialized devices focused on entertainment instead of general purpose ones.
