I'd bet that fewer than 5% of Apple customers want a general-purpose computer, and it hasn't deviated much from that over time. Apple has always locked down their hardware and software relative to their competitors. The "it just works" philosophy isn't free, and if it seems like it's getting more locked down, it might have something to do with Apple trying to maintain its profits in the face of increasing competition.
The "household-appliance" moniker is a red herring though. Just because they supply an App Store doesn't mean you have to use it, and it doesn't mean you can't do amazing things with it. Are we really comparing something that can help educate, research, run a business, entertain, etc. with a dishwasher or TV?