GoPro Karma - If a GoPro is your primary mode of filming, you should definitely be interested in the GoPro Karma.
3DR IRIS - The IRIS is a prebuilt quadcopter made by the popular drone company 3D Robotics. The basic package without any accessories costs about 750 USD and comes with a wireless data antenna and a custom transmitter.
Dji Mavic Pro - Wherever you go
DJI Phantom 2 - The DJI Phantom 2 is a prebuilt quadcopter, primarily made for filming.
DJI Spark - A mini selfie drone, controlled with gestures
Parrot DISCO FPV - Easy to fly fixed wing drone