Do what most Roadies do:
put the Dura-Ace on your bike, but buy a Campy t-shirt to wear around.
According to a friend who works at one of the mail order houses, guys who buy DA usually also buy a Campy shirt.
Makes some kind of sense: if you wear a Shimano shirt to the gym, for example, people could think you're a fisherman. But wear a Campy shirt, and your identity is pure cyclist.