We're used to seeing robots like MIT's Cheetah that are absolutely terrifying, so starting day two of Expand New York with an android dance party was a welcome change of pace. It came, of course, by way of the folks at Aldebaran Robotics who brought a trio of their fifth-generation Nao bi-peds to bust a groove. The outfit's James Dietrich said that while there are over 10,000 of the friendly little 'bots in use in some 70 countries, there are a more than a few things holding us back from having Rosie from The Jetsons in our homes. Namely, the price needs to come down: Developers can get one for $6,000 and a consumer model is a whopping $8,000.