I'm one of the younger crowd (under 30 anyway), and I don't get the Fixie trend. Granted I want to build one, but that's more from reading Sheldon Brown's writings on the subject than fitting in with a PBR in my hand.
I reject the concept that you only get to be creative when building an Fixie/SS bike. Hell, with the rush on converting old frames its reduced the cost of derailers @ the local bike co-op to next to nothing. I scored a NOS Suntour VG-T there just the other day and was rather happy about it. Then again I shake my head when I see vintage touring frames converted to SS/FG by the same co-op. (I have a fetish for touring bikes, so my blasphemy meter goes off the charts with that!).