But that means speed does matter after all. The renting company will need to clean as many flats as possible with a single robot in a single day.
Robots aren't a necessity, and for a price tag in the tens of thousands, most people will just mop their own floors and do their own laundry.
And (regardless of the costs involved) if I were going to pay money to not do this stuff myself, I'd rather pay a human to do it because I know there are humans out there that could use the work and I value them much more than I value Google and other corporations making even more obscene amounts of money selling future e-waste.
increasing your spend by 25% is a smaller change then increasing your spend by infinity%
If Rosie was the only output she would never happen. Rosie might happen as a side benefit of replacing American workers but only for the rich people.
The vast majority which may be replaced would probably be better off burning down the factory rather than celebrate their upcoming domestic helper.