I’m glad I never bought a 40. In fact, I don’t even own a 45 anymore. I’m all 9mm all the way today.
Some folks prefer to diversify their 'investments' - in no small part, because leftist politicians in this country have a proven track record of copying foreign gun control laws. Several other countries (including our neighbor to the south?) have outlawed civilian possession of firearms and ammunition in "military" calibers (like 9mm). Pushing that kind of a ban here would mesh with the leftist propaganda about semi-auto firearms being "weapons of war"...