I wonder how much of it is also people like me. I work in tech, but I despise single-purpose household "gadgets." I have a vacuum cleaner and a set of working eyes. I can clean the floor in 5 or 10 minutes, rather than having a "robot" roaming the room randomly, bumping into things, and making noise for an hour. When I'm done, I store it away in a closet and don't have to look at an unsightly lump of plastic parked in a charging station. Bottom line, these cleaning robots don't solve any problem that I have, and they make my home less enjoyable to be in.