Boulder is known as an outdoor enthusiast's kind of town.  Almost everyone I know has a plethora of outdoor gear - multiple bikes, skis, helmets of every configuration, packs and bags, tents, stoves, and the occasional kayak and canoe.  Largely this equipment has usurped the car from its usual haunt in the garage.  It is a rare Boulderite who can actually fit their car in their garage because of the ever-expanding collection of bikes if nothing else.