I was thinking of getting a 10 mm and started to checkout the cost of rounds. In my area, Gander Mnt, and a few local shops do not carry any 10 mm rounds. I'm very disappointed because without a local source for ammo, a change in the law could keep ammo out of my hands if I need to have them delivered to me because of that lack of retail stores that carry it. I was thinking of getting the most powerful Glock but ammo availability at the retail level could stop me. I know its expensive to shoot but it would not be my main range gun. BTW- I'm around the northern Il area if that helps.