A little over a year and 4,000 miles into commuting, I'm still not wearing a helmet. My hope is that if I die while riding my bike, I can provide some good narrative fodder for other internet cyclists, whether pro-helmet or otherwise, i.e. "helmet wouldn't have saved him" or "if only he had been wearing a helmet". It's my way of contributing to the internet cycling community. Like an organ donor, only instead of my liver you can have "there was this one guy ...".
Other kids wanted to be firemen and marine biologists but I said "I want to be a statistic when I grow up".