I've got five (which means I'm addicted, according to BleeckerStGirl's formula.)

2007 Rivendell Glorius (commuter)
2005 Specialized Sequoia Comp (road)
2006 Kona Cinder Cone (mtb)
1986? Bridgestone mixte (just for fun)
1991 Bridgestone 300 mtb converted to Xtracycle (hauling machine)