Pretty much how I feel about it.
I was talking to my wife about this on the way home. She brought up an interesting point about Pit owners:
The vast majority that both she and I know or have seen, are jackasses.
I doubt there are any official studies done on this, but it would be my guess based on our conversation that the majority of people who purchase a Pit have bad intentions for the dog.
Unlike people who purchase something like a Lab. Does anyone know someone who purchased a Lab with the thought of making it into a killer? I know people purchase other dogs like Rotties and whatnot, but Pits tend to be a lot more "affordable".
Also, if you look at the Oregon Humane Society, Pits outnumber any other breed by at least 3 to 1. Which also leads me to believe that the previous owners were irresponsible or just don't care.