Thumb Score: +16 Worx via eBay [ebay.com] has 20-Volt Worx Landroid 0.5-Acre Self-Charging App Control Cordless Robotic Grass Cutter Lawn Mower w/ 5.0A Battery (Open-Box, WR155) on sale for $599.99 - 20% off with code SHOPGIFTSEARLY = $479.99. Shipping is free. Note from the product page: "In reference to the condition, the tool is new but has been re-boxed in a plain brown box.