Buy Happier via eBay offers the refurbished Neato Robotics XV-11 Robotic All-Floor Vacuum Cleaner
with free shipping
. That's $80 under the lowest total price we could find for a new, factory-sealed unit. Features include a 360° sight range, obstacle avoidance, and more. It comes with six filters, 15 feet of boundary markers, replacement brush, and sole plate with squeegee.
A 3-year Buy Happier warranty applies.