I agree that relectors are dorky and don't have them on my "good" road bike or my mountain bike.
BUT.....
I don't really care about the dork factor on my commuter and err on the side of "as much visibility as possible" with that bike. Reflectors are on that bike.
If the bike is pretty much to be used as a dedicated commuter, and you intend to commute at dusk and after dark, I would say keep the reflectors ON ....