Swampman:
There is a large group of individuals who love the 45 ACP for itself, no matter how many other calibers may outperform it. For this group, the 45 ACP speaks for itself. Those that would have to ask "Why?", would not understand even if someone tried to explain it. (Same as why a 7x57, when there is a 280, why a 30-30 or 308 when there is a 30-06 or why a 35 Remington when there is a 35 Whelen.))
Of course, some will try to pick it apart just to to engage in confrontation or to draw attention to themselves..