A lot of it has to do with confidence. If you have a pistol that is a tack driver, it will impart more confidence on the user than one that shoots garbage can lid sized groups at 25yds.
Confidence is not a bad thing.
I am going to have to price the Kahr CM9's, because i have a major want for a PM9, they're just sooo expensive. Maybe i can wait about a year and find a used CM9 on the market. The things are
small.
The Kahr PM9 9mm is virtually the same size as a Ruger LCP, which is a very small .380 pistol.
There's a brand new sig sauer super compact about to hit the market too. It's also a 9mm, here's a pic:

Sig P290