For about US$2,000, you can get a pretty ridiculous camera-equipped UAV, which can be controlled by radio at a range of up to 15km. People fly them using live video streaming to goggles.
One group of people using these drones has made some impressive videos of places like New York City and the Matterhorn. Their work is pretty audacious, both in terms of how they flirt with the destruction of their drones by flying close to obstacles and because of how they flirt with trouble with the authorities by flying low in major urban centres.
These drones may have been part of the inspiration for the drone-related plot points in William Gibson’s latest novel, Zero History.