Camera drone UAV's are becoming more and more popular and more affordable as competition increases. You can get really inexpensive models that do have a camera and will take video or stills. These would be in the toy/trainer class. They will not have great video or audio, but are a lot of fun and more of a learning tool.
Then there are the really expensive ones that also take video or stills but have FPV (first person view) capability. Depending on the model you can fly with a cockpit view up to about a mile away and record video. These are professional class and used by aerial photographers and videographers for some really great shots.
If you are considering getting a drone you should read some camera drone reviews before purchasing.