I'm not sure.
I think house cleaning/chores require at least a "part-time" job's work of work for the average household (especially with children). We may be atypical, but my partner and I don't want to hire out a cleaning service and deal with the whole human component. But, I think we'd gladly pay 15k+ if it allowed us to take on the additional gainful workload. Even at a 20k price tag, I suspect we would likely have made up the difference in under a year.
> We may be atypical, but my partner and I don't want to hire out a cleaning service and deal with the whole human component
I kind of understand where the feeling comes from, but this also saddens me. What happened to our generation? We're scared of people.
If you can even afford 20K you're in the top 10% of the US population. It's not a very big market, and even selling to that market is hard. Probably only 10% of that 10% will actually buy, and all of a sudden you're selling to 1%.
Selling to businesses is much easier, 99% of businesses can afford 200K if it replaces 3 x 70K humans.