That cardboard frame is great! Cardboard can be strong just look at some of the furniture they produce with it.
With a nice modern designed bit of wood, something so futuristic looking such as a quadcopter, becomes a bit more..... (cant think of a word) organic comes to mind, but its not quite right.
Anyway its sat on my sideboard, and every time I see it I get the same feeling as looking at a nice car. I never get to have the best things, but to me this is the best looking quadcopter out there!