When calling gun stores looking for prices on the right firearm, it is good to remember that Kahr makes the PM-9 and Kel-Tec makes the PF-9. One runs $800+ for some reason and the other $300'ish.
If the PF-9 fits for me, that's going to probably be my choice for the mouse gun, Kel-Tec haters be damned. If the size difference between the P3AT and the PF-9 is negligible, I prefer the strength of the 9mm offering better.