I think I tend towards the "different == right" attitude where bikes are concerned. Otherwise we'd all be on hybrids.
Yes, I have my preferences, some for boring practical reasons, some because I have an overengineered tourer fetish and a touch of Amiga recumbent persecution complex.
But when I ride with girly city bikes, the BMXes and the improbably clean hipster bling fixies on Critical Mass, I still think "Hey, nice bike!". It's all good. Yes, even the single-speed Van Moof.