The Neato XV-12 Robotic Vacuum drops from $419 to $209 with free shipping at Walmart.com. That's the lowest price we could find by $125 (compare at Amazon), and this vacuum includes 2 free replacement pet & allergy filters, a $40 value! This vacuum uses a laser navigation system, bagless technology, and powerful suction to clean your floors on its own. It includes a 1-year manufacturer defect warranty. Sales tax is charged in most states.