Robots are completely useless you train them to do you bidding, making Mobile Robots’ PatrolBot entirely useful. There’s three models to choose from: Jeeves, a robotic butler (a robotic table top essentially); BrewskiBot, a refrigerator for cold beverages; and Agent 007, a toy-like intruder detection system.
The PatrolBot has some impressive technology under the hood. You’re able to input your house’s floor plan so that the robot doesn’t bump into walls and whatnot while on the prowl.
One small problem: each robot costs a cool $30,000.