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Consumer Electronics Cost Savers via eBay offers the iRobot Roomba 620 Robotic Vacuum Cleaner for $179.99 with free shipping. That's $45 under our May mention and tied with the lowest price we've seen. (It's also the best deal now by $45.) It features a 3-stage cleaning system, HEPA filter, iAdapt sensors, and self-charging home base.