i agree on all points except for the more available reason, i can't see much range ammo for 9mm at walmart but i can find a lot of 40 s&w fmj ammo
That's why I carry a .40...I have never owned a 9mm. Nothing against them, just prefer .40 cal. The op is talking about 9mm vs .45 acp. I believe 9mm is more available than 45 acp. It cetainly is in my neck of the woods.