You guys are talking about purchasing a firearm for "bug out bags/kits" why would you buy several cheap weapons? Like Wanderer1 says, it's much easier to have a few caliber's that you practice, train and reach for in an emergency. If SHTF, I want to know that I'm more than proficient with my weapon. (as well as other things) I have found that you really do get what you pay for when it comes to firearms.
I agree with you that you get what you pay for, but in my opinion a Glock is the most reliable handgun available, and it certainly isn't the most expensive. I think you are exactly right with the comment on basically practicing with the calibers you use, and become proficient with your weapon. People often laugh when I pull out my completely stock Glock 17 with a Streamlight mounted on it during daytime shooting. The fact is that if I need my Glock, there's a good chance it could be dark, so my light never leaves my gun.
Kimber's are very nice, but I feel the magazine capacity of a standard single stack 1911 makes it less desirable in a personal defense situation than a Glock. Maybe you'll only need a few rounds in an altercation, but what if you have multiple threats enter your house? It is just my personal opinion that a Glock 17 is the best choice for a self defense handgun. 17 rounds of 9mm ammunition with easily manageable recoil under stress.
45 auto has significantly more recoil, and significantly less magazine capacity. I'm not going to mention ammunition brands, but a quality 9mm ammunition can be equally effective as a 45 auto and there is more room for error during a very stressful situation with the added magazine capacity and lower recoil.
A well trained user can manipulate a 1911 under stress, but for the majority of people I think a Glock is less prone to failure compared to a possibly very light trigger in a 1911, and you also have to remember to flip off the safety before using it. A Glock requires less fine motor skills, which in my experience is the first thing to go in a high stress environment.
There are other legitimate competitors to the Glock, I just like it the best for various reasons.
Just my $.02
Rant over!