Sometimes there is a comment which I think touches on something worth pulling from the comments section to the front page. This is one of those times.
Buy lots of pistols for different applications! You may need to have exactly the right tool for the right job.
Moi? Colt 1911 Officers Acp .45 for simple concealed carry in warm weather (or anytime).
92 FS for general, overall, handgun applications.
.357 magnum for carry while hunting. If I were carrying a rifle or shotgun as a primary weapon I'd have no problem carrying the .357 with speedloaders for backup. There are a number of good reasons for carrying a .357 period.
Then there's idea of carrying two guns as opposed to just carrying extra magazines for one gun.
Then there's the idea of carrying a pocket pistol. Beretta Bobcat per discussion here earlier.
Buy one for every possible scenario!!!! Do your part for the American economy!!!! Multiple calibers means greater dexterity in times of shortage.
Do your part for peace and safety and train hard to shoot each weapon you own very, very well!!!! It's lead on target quickly that gets the job done!!!!!
TOR replies: To get to the foundation of my thoughts on this matter read deep vs broad and redundancy vs collecting. I think it is prudent to try and keep your logistical footprint to a sane size. Having 8 pistols which take 6 different cartridges would be a real pain in the ass and could potentially lead to problems. You can have a pretty good diverse collection with a fairly minimal logistical footprint. Say you have assorted Glock 9mm's, a few .357 revolvers (various sizes), a .380 and a couple .22's. You've got a broad variety of handguns for all manner of carry and defense, a .380 to pack when you dress up nice, and a couple .22's. That is 8+ pistols with two magazine types (Glock 9mm and .380) to worry about. Three pistol calibers and you had .22 ammo already. Maybe throw in a 1911 and cut out the .380 if you are so inclined.
To be honest right now I am looking to simplify my logistical footprint by dropping a redundant albeit potent cartridge (.40s&w). That will leave me with .38/.357, 9mm and .45 pistols. Plenty of variety, two magazine types and 3 cartridges to worry about. That they are the three most common pistol calibers (if they ain't I'll kiss yer ass) in the US is just icing on the cake. This reminds me of the addage that common calibers (and platforms) are common for a reason;) Somewhere down the road I will get a .380 but that was going to happen either way.