I've never had to shoot any gun in SD, and I doubt I'll ever have to, but I'm glad that they're there. There have been a couple of close calls, once when an escaped felon was in my mother's neighborhood, (the cops caught him), and the second time there were cops with guns drawn circling around the house behind me (false alarm). In both cases, I dropped a .38Spl in my pocket and stayed in the house.
If push came to shove, I'd probably have grabbed one of the rifles or 12-gauge doubles. Handguns are fun, but if my life is on the line, I'd rather have one of the longguns.