This deal has ended.
The refurbished iRobot Roomba 4210 vacuum cleaning robot is at Buy.com for just $114.99, over $100 less than a new model. The Roomba vacuums your house on command (including carpeting, hardwood, tile, linoleum, and concrete), and without guidance. This model also allows for two virtual walls, letting you block areas you don't want it cleaning and comes with a remote. Shipping is free and there's no sales tax (except CA, MA, MD, TN).