I wore the Aluminum C6 around town a few times over the Christmas holidays and the CF C6 all throughout the weekend and on Monday. They're both solely display pieces now. I wasn't too worried about them being recognized. It's really something only collectors would know about, and there isn't a whole lot of collectors around here. Besides, they're not all that flashy such that they'll compel someone to have a closer look.
On another topic, Oakley Canada confirms both versions of the C6 qualify for lifetime lenses. So those who have it or are looking to get it, wear it well and don't be too worried about keeping those lenses mint.