The market exists, does it make financial sense to fill it? Are there enough johnfns out there willing to buy enough of them at high enough of a price to justify the mind-boggling capital required, not to mention the opportunity cost?
If it does laundry too? We'd easily pay $20,000, and we don't have FAANG type salaries.
A dishwasher saves a lot of time but it certainly doesn't save all of the time.
But let's be generous and suggest you'll actually get someone willing to come out for just one hour and work for half the pay of market rate. Sixteen weeks. Still far short of 52 weeks.
More than I can afford, I bet.