My primary range gun is also my nightstand/go-to weapon - Beretta 92. I know it the best and shoot it the best.
It's also my cold weather carry. Warm weather carry is a different make and model, but exact same manual of arms aside from takedown procedure.
Why change what works?
Secondary range gun (GP100) also resides in nightstand and is the one to hand the wife if SHTF in the middle of the night. She's a revo' gal so it works
"The best diplomat I know is a fully charged phaser bank" - Montgomery Scott