9mm does seem to have taken off in recent years. I'm trying to like 9mm, but still find myself opting for the .40 or .45 a lot. As has been said a million times over, any of them will do the job, so I tend to carry what I'm shooting the best at any point in time. For the last week or so, it's been a .45 in a 1911 for me. Tonight, it's a full size 1911 that's on my side. Love those things.