And we're only worried about vendors going out of business because it's the early days and it's largely startups pushing the trend. With a Samsung or Apple, it's more that they'll quickly (by home equipment standards) stop supporting whatever doesn't stick to the wall.
There is a case to be made for self-contained objects that don't derive most of their value from an ecosystem, but work normally with no network. Work up from a toaster, not down from a computer.