Yeah I only see robomaids as an affordable option for someone that needs help with absolutely everything. These things are built out of commodity parts. Maybe you can make a robomaid a little cheaper if you build a lot of them to offset the upfront costs but not by much. Anytime the robomaid isn't working, it's just decreases the value of having one versus how much you paid for it. So the point would be to put it to work as much as possible such as for an elderly person that's unable to do anything for themselves.