BuyDig via Rakuten offers the refurbished iRobot Roomba 650 Robotic Vacuum Cleaner in Black for $229. Coupon code "HOME20" cuts that to $199. With free shipping, that's $21 less than last month's mention, an all-time low price, and $40 under the best deal we could find for a refurb. This 3.6"-tall vacuum features a 3-stage cleaning system, virtual wall technology, object avoidance, 10-1/2" cleaning path, and on-board scheduling.