Neato XV-11 Robotic Vacuum System. Smart, Powerful, Methodical

This little beast is perhaps a little ahead of the other vacuum robotics companies. By using a propriarity RPS (Room Positioning System) it litteraly scans the rooms interior before starting to clean. This will give it a "map" of the room so the cleaner knows exactly where to go. Unlike the Roomba which makes several passes the same place over and over, the Nexus only vacuums one place once to optimize efficiency.

399$ at the time of writing.