I think it’s one of the most idiotic devices anyone could own. Buy a normal vacuum cleaner for half the price, spend 10 minutes a week vacuuming your apartment, and you won’t come home and find that your cleaning robot spent the afternoon choking on a shoelace.

But what if I'm too lazy to vacuum 10 minutes a week and don't want to do it?

> "most idiotic devices anyone could own"

Ever been to Chesterton's Fence?

Hypothetically, some people who own such an idiotic device might have pets that bring in lots of dirt from the fields, lose lots of hair, and get a little bit agitated by the normal vacuum cleaner but more or less ignore the robot vacuum.