But you can see the market appeal. A robot vacuum cleaner can’t climb stairs to clean an upstairs room. A robot arm that ...

You’re still paying a lot for this robot vacuum at $1,299 instead of $2,599, but it’s the best on the market right now and ...

So here we are: Roomba, the tech that put consumer robots on the map, now feels relatively ho-hum — one brand among many automated vacuums on the market — while the dream of an Optimus-esque bot to ...