Depends on which side you identify with. Jamaica's Blue Mountains Costa Rican Quest L.A.'s San Gabriels GORP Biking Mountain biking has only recently been the weekend beauty contest you see today. The sport goes so much deeper. At its roots, beer is used to cleanse the wounded, and sponsorships or even nice equipment are in the realm of fantasy. The sport has a tremendous depth, and attracts some very profound people.
Naturalists trek the woods by mountain bike.
Citizens' groups organize campaigns that shape cities and raise funding to protect and build the trails they use. There's also camaraderie in mountain biking. In Laguna Beach California a group called the Rads has been gathering weekly for about 15 years. Secrets are told there that aren't shared anywhere, and they are kept. We mountain bike for the views.