As far as the mannequin actually replacing dancing with flesh & blood women, that remains to be seen.
The mannequins are produced by a company called Baldora Dance based in Luxembourg. The mannequins cost 969€ including shipping if you live in the US, so that translates to around $1100 US dollars, which probably puts it out of the price range of most people unless you own a dance studio.
The dance mannequin is a novel concept and seems like it could be useful for practicing turn patterns, although the arm movements don’t completely approximate a real person, and the mannequin does not provide any resistance or tension, which could make practicing certain moves that require a counter balance difficult.
Still, it seems like a useful tool for a school or studio that can afford the high price. What do you think?