I personally own a Glock 22, which chambers a .40 Smith and Wesson. I like all of the kinds of guns- be it handgun (revolver or semi-auto,) rifle, shotgun, etc. Still, pistols are good because you need little space for storage, and with enough practice, can be deadly with one. Yes, you can kill without practice, but that's more along the lines of luck than skill.
I prefer skill any day.
You can't squeeze blood from a stone, so I use hamsters.