Holy Smokes, great question. I have 7 bicycles, my wife (She Who Must Be Obeyed) made me sell off a couple.
I have road bikes: 1970 Schwinn Paramount "fixed gear" (ha, there ya go!), a 1980 Ron Cooper Sprint and a 1993 Paramount.
I have a couple of mountain bikes: Matt Chester 29er singlespeed, 26" IF Deluxe (best climbing bike I've ever been on), 1993 Breezer Lightning (converted to street duty).
A 1989 Schwinn Cimarron I used to commute to work on a lot, but I work from home now so it gathers dust.
I don't ride like I used to but I still get out there. I've been on the roads and mountain bike trails all over Texas, Oklahoma and Arkansas. I love being on my bike in the woods, reminds me of when I was 8.