Nonetheless, mass transit in SF is still pretty crappy. Muni is notoriously unreliable and slow (it's often faster to jog than take Muni -- to say nothing of biking).

As someone who lived in Palo Alto for almost a year without a car... there is so much to be desired for public transit. Outside of the few blocks near University, it quickly becomes a walking wasteland. My bike, on the other-hand, was a divine gift from the heaven and, when combined with CalTrain, enabled a fairly large world-bubble.