I just often feel as if, Heaven forbid, I must defend myself and my weapon is tied up in proceedings, I would like to have the exact same “system” to fall back on.
Using similar logic, I end up with similar pistols if I like one.
Full size 1911's in 45 acp and 10mm
Doesn't matter which I'm carrying, they feel the same in my hand, work the same, use same holster.
What if self defense situation happened on a trip/vacation?
"Two is one logic": take two pistols, for example two 1911's, each has its own holster and two spare mags.
If, God forbid, a pistol ended up in evidence then a replacement is handy for the rest of the trip.