iRobot’s cheapest Roombas add a self-emptying option starting at $400
Source: The Verge The Combo 2 is now the most expensive option in iRobot’s Essential line and slightly pricier than the $400 DreameBot D10 Plus, our current choice for the best budget robot vacuum and mop. The Vac 2 is available via “select retailers” in North America (including Target and Best Buy, so far) and…