“Other than being cheaper, How is a small drone any different in it’s privacy invasion than a helicopter or a light plane at high altitude or for that matter a satellite?”
It’s not any different. The only difference is the amount of high-pitched whining from all the Chicken Littles out there who think the sky is falling. Every time someone mounts a video camera in a public place, the whining starts all over again. It almost seems like the ACLU has a full-time presence here.
And how do they think Google Earth works? Folks worry about the loss of privacy and yet reveal too much online. Gotta go, the black copters are here, wait! ha! just a spot on the glasses.