I'm a recreational rider. I use cycling as part of my cross-training. And I tried the whole commute-to-work bit. Being out in the fresh morning air is nice, but it's such a pain cleaning up at work, etc., then doing it all over again in the afternoon for the ride home. I'd rather drive to work & home, then go for a longer ride in the afternoon instead of two shorter rides.

I don't see a bicycle as a viable alternative to a motorized vehicle. At best, it's a poor-man's means of transportation, or at least a junior/high school kid's way to scoot around town without mommy driving him.