iRobot is selling refurbished Roomba 960's for only $149.99 at Newegg - Neowin
Amazon.com: iRobot Roomba j7 (7150) Wi-Fi Connected Robot Vacuum - Identifies and avoids Obstacles Like pet Waste & Cords, Smart Mapping, Works with Alexa, Ideal for Pet Hair, Carpets, Hard Floors, Roomba