I have only two 9 mm Glocks and thousands of rounds of 9 mm. If anything were to happen to 9 mm and it became unavailable, i would be in a very bad situation given this is all i have. I would like have a Glock that is chambered in .40 or .45. Given how long each round has been around and the availability of each round and also the fact that I am not concerned about price or mag capacity, is there any reason that i should go with .40 over .45? I would like to split my budget by only two rounds. Remember, it will be a Glock. I feel like .45 is right, but for the same reason I only have a g26 and a g17. If I had a g19, then i would miss out on the best things about the g26 and the g17(ultra concealable g26, high capacity g17) This is how I feel about the .40 S&W. I DO NOT THINK .40 IS POINTLESS, I'm just looking for knowledge.