My brother once bought a smith in 45 acp. I thought it was kind of stupid at first, because he hated revolvers. During the conversation, I asked him if he had any speedloaders yet. He asked me if I was an idiot, of course, I got offended, and said "HUHH!?"
He pointed out that a guy using full moons and a DA revolver has the power and bore diameter of a .45, with 6 rounds, and the ability to reload in about the same time as he would with a 1911. he could load any type of ammunition in that thing, any hollow point, any profile, and never, ever, would that revolver choke on a round.
So, the .45 revolver does have a place, IMO. They all do, I figure. I'd take one in 10 mm any day as a between level round for .357 and .44 magnum.