I think there's also: 3. Traffic is at record low levels. My city isn't at all bike friendly, but at the current traffic levels I'd feel safe enough to take a

I think there's also: 3. Traffic is at record low levels. My city isn't at all bike friendly, but at the current traffic levels I'd feel safe enough to take a ride - the bikes themselves are just so absurdly marked up that I can't justify the expense, so I'm running instead.