Noodle-slicing kitchen robots

(Nanowerk News) In the face of rising labor costs, Chinese restaurateur Cui Runguan is selling thousands of robots that can hand slice noodles into a pot of boiling water called the Chef Cui. Runguan says that just like robots replacing workers in factories, "it is certainly going to happen in sliced noodle restaurants."
The robots costs $2,000 each, as compared to a chef, who would cost $4,700 a year. According to one chef, "The robot chef can slice noodles better than human chefs."
News of Runguan's invention hit the internet in March of 2011, but they've since gone into production and are starting to catch on: 3,000 of them have already been sold. But why do their eyes glow, and why do they look so angry? Here's video of this nascent robot army.