"Just as die-hard skateboarders 15 years ago stood on the cusp of providing a new lifestyle, so the fixed-gear bike culture could be the tip of something that nobody can accurately predict but something that is huge."
I can see fixed as a preference but a lifestyle? Any fixie clothing, music, I could be wrong. Skateboarding became a 'lifestyle' because people started it in their teens and perfected it in their 20's. Times may also be confusing the fixed gear thing with tall bikes, and possibly BMX (w flip flop hubs).
2000 Montague CX, I do not recommend it, but still ride it.
Strida 3, I recommend it for rides < 10mi wo steep hills.
2006 Rowbike 720 Sport, I recommend it as an exercise bike.
1996 Birdy, Recommend.
Wieleder CARiBIKE (folding), decent frame.