The main reason people get these dogs is to project an image of aggressiveness. That plus a love for ugliness.
Have you ever noticed pit bull owners are usually about as ugly relative to the human population as Pit Bulls are to the canine population? Some kind of psycho "community of the ugly" going on.
Well, now. I have a pretty handsome family AND a beautiful doggie.
There are people besides thugs that own these dogs - Rachel Ray, Michael J Fox, ME...that look pretty descent.