https://home.woot.com/offers/shark-matrix-plus-vacuum-mop-self-empty-robot-vacuum Shark Matrix Plus 2-in-1 Robot Vacuum & Sonic Mop (RV2600WA) on sale for $212.99. Shipping is free for Amazon Prime Members (must log in with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is otherwise $6 per order.