Ebay offers Refurbished iRobot Roomba E6198 Vacuum Cleaning Robot for $279.99 (orig. $379.99) with free shipping.

Product Description:
The Roomba® e6 robot vacuum features a premium 3-Stage Cleaning System that uses Dual Multi-Surface Rubber Brushes, Power-Lifting suction, and a high-efficiency filter to help thoroughly clean every day. The Edge-Sweeping Brush concentrates on edges and corners as intelligent navigation and Dirt Detect™ technologies help the robot get around furniture and focus on areas that need it most.