There's potential case for a subscription model to keep security updated for the connection to the users' phones as well as on going support for less tech savvy users (e.g. "I told my assistant to turn on my smart dishwasher and it turned on the my smart washing machine instead"). I'd imagine the HN crowd would lean toward a open source version though.

With that logic, there wouldn't be anyone selling refrigerators or dishwashers.

Well, custom/bespoke training for your families particular needs perhaps, performed once every 5 years.

I mean I envision analog/custom/bespoke ai hardware that is fundamentally 'good enough'. I mean as the market increases its need for these systems and as time progresses at some point it'll like warhammer 30k where these 'standard template constructs' are smart enough to basically teach you anything.