Indeed the imagery isn't too pleasing. Bumpy and very poor focus quality. Or was it so poorly scanned?
S8 cameras tend to weigh a lot compared to the copter liftcapacity. So you would need a big one.
The advantage is they can run from a few AA rather then NiCd packs.
It has been discussed elsewhere.
A long time ago there were amateur rockets which would have a special dedicated S8 camera on board. It used clips of film in small dedicated cartridges.
Considering the cost per minute I would try to use the remote control of the camera. And attempt to shoot only when there is chance of something interesting.
Also it would be better if there was something to see moving down on earth. Image quality is just too poor for scenery. Regulations likely forbid flying these things over people and to film people in their homes and such. So it must be sideviews of trains, autobahn, wateractivities etcetc.