It is still a very dynamic market at the moment with lots of entrants with little track record.
My personal inclination in such cases is to wait and see, rent/borrow if needed but not commit on a supplier too early.
Drones will end up being an important photographic tool to address some situations and expand the envelope of the possible. A little bit like panoramic heads, HDR and DoF stacking softwares, laser controlled triggers,...
There is of course a push to be one of the early adopters in order to produce work differentiated by the novelty, but I'd rather focus on carefully mastering the technology as it matures and apply it to the right images to try to come up with good photography, not just novel photography.
I know... boring.