Well, some people pride themselves on being prepared.
I'm sure there's a few guys out there that wouldn't mind CCW'ing a Calico M950. Nothing spells security like a hundred round drum of 9mm.
If people want to lug all that weight around, good for them. Realistically though, there isn't much out there that you can't off with a .38 or .44 snubby. And if you do fall into a situation where you need more than five or six bullets, your probably an actor in a hollywood movie.