So after years of effort I think I've finally infected my girlfriend with the "gun bug". We went last week and had her apply for her FOID card (an Illinois firearms owners card, required by law) and while we were at the gun shop we of course did a little browsing. While she may be new to guns, she's not new to shopping and she immediately picked out a pistol that she decided that she wanted. It was a Springfield XD in .40 Smith. I've wanted an XD for a long, long time so I was overjoyed that she picked one, but then I got to thinking.
Is there any advantage for a civilian to own a .40? It's got a much meaner kick than a 9mm, and less magazine capacity, while not having the power of a .45. I know the storied history of the round, and know that it's the Feds choice since the 10mm seemed too much for small hands, so maybe it's a good choice for an FBI agent, but is there any real point in a citizen to have one?