" can anyone tell me if they would still sell or is it that people truly don't believe they can sell these things?"
I don't know whether they could sell them or not. But the competition is already out there:
versus
Dobby also has facial recognition, live streaming, control from the phone, can be controlled by waving your hand, travel up to 100m, fold-away blades, is currently available for US$370 and fits easily into most pockets.