Newegg via eBay offers the refurbished Infinuvo Hovo 650 Robotic Vacuum Cleaner for $119.99 plus $1.99 for shipping. That's $72 under our May mention of a new unit and the lowest price we've seen for this vacuum in any condition. (It's $77 less than you'd pay for a new one today.) It features LED touch controls, a 2-stage filtration system with HEPA filter, UV sterilizing light, cliff sensor, virtual blocker, scheduler, dual side brushes, and full-width microfiber cloth and water reservoir for mopping.

Note: No warranty information is provided, but the seller offers a 30-day money-back return policy.