Ending today, Avalon Direct via Amazon offers the iLife A4s Smart Robot Vacuum Cleaner in Gray for $194.99. Coupon code "WG5PXXAF" drops it to $150.14. With free shipping, that's tied with last week's mention and the lowest price we could find by $20. It works on all floor types and features a HEPA filter, 3-step cleaning system, 120- to 140-minute runtime, and automatic docking and recharging.