The materials used for Google Glass have a total cost price of only $80. Teardown.com took Google Glass apart and calculated the costs of each part. Google is selling Glass for a price of $1.500.
We have about 4 months of first hand experience with Google Glass. There is a broad interest in the device. We had several dozens of talks with companies that want an app for Glass. And we gave a personal product demo to more than a 1.000 people at one of the conferences we presented or during internal company sessions.