Color matters to a degree for me. I'm indifferent to the colors of my Dolces--a blue one and a red one. My Bianchi is that beautiful muted celeste green. My Luna Eclipse is pink, which I love. Funny that my steel frame bikes are my favorites and I really like their colors.
I have to decide what color I'm going to pick for the Orbit that Luna is building for me.
There's a guy whom I see every day who rides a flourescent pink bike, and another whose ride is flourescent orange (I think these must be anti-theft paint jobs because both guys are commuters).