Drone SuperStore via eBay offers the refurbished DJI Mavic Pro Quadcopter Drone with 4K Camera for $799 with free shipping. (DJI via Newegg charges the same.) That's tied with our August mention and $140 under the lowest price we could find for it new. It features a 12.7-megapixel camera with 4K video recording, top speed of 40mph, run time of up to 27 minutes, and control range of up to 4.3 miles.

Note: A 1-year DJI warranty applies.