I think my interest is in the novelty of it. The idea of firing a shot shell from a pistol peaks my interest. . .
Well I've done it and it's a lot of fun, but it is a little hard on the gun.
I wouldn't do this with my everyday carry pistol, but I would get a different used gun for range fun & maybe not a very expensive one, but one where you didn't care if the barrel was not Primo,
A lot of what determines the best carry pistols for you, I think, is your physique. I have a large friend & he's perfectly comfortable with carrying a 45 acp concealed, in shorts and a t-shirt.
Hell, with his gut he could hide a
pair of forty-fives under there.
I need something powerful but smaller, and if it hurts my hand when I fire it, well that's a small price to pay for self defense.
Now I know a guy who carries a scandium five-shot .357 revolver as a self-defense gun. It's more reliable than an automatic, they say. It's a fabulous and expensive little gun, but he's a little larger than I am & I still prefer the 9 millimeter compact for its shape, though it is no smaller really.