Drones are definitely fun. But as with many robots, at some point you have to answer the question of, "Okay, that's cool, but what does it do?"
We're not entirely convinced that drone delivery is going to be a thing, but one application that has actually managed to turn into a potentially viable product is the capability to follow someone around with a camera.
The "Follow Me" drone isn't so much a drone; it's a combination of software and hardware from 3DRobotics. DroidPlanner 2 is software designed to interface with drones and autopilot systems from 3DRobotics. It runs on your phone and includes (among many other things) a "FollowMe" mode where your 3DRobotics drone will track your phone and follow it: