There's no information on what kind of robots these are. With arms like that they aren't too useful for anything but the Tango, but they're pretty good at it. Is a dancing robot worth making?
Good find, thanks Code! That Kibo/Silbot 2.0 head really bugs the sh!t out of me though. He looks like the LoonyToonz version of Edward G. Robinson.
I stumbled on some info about these robots:
As for the question if it's worth making a dancing robot: they are as useful as a robot which only purpose in life is to avoid obstacles. So yes, they're worth making!