Kahr all day over kel-tec...kel-tec are good budget pistols but like above...ferrari vs honda civic.
Rather own the Civic, will last a lot longer, don't cost near as much to maintain, much better gas mileage, affordable, gets the job done. The Ferrari is ostentatious useless in a 70 mph world, unless you plan to use it to pick up chicks. But, if you have that kind of money, why do you need a Ferrari to find a date? Just open you checkbook and show 'em your balance.
Similarly, I don't see how the Kahr could be twice as much gun (twice the price). The Kel Tec gets the job done just fine, accurate, 100 percent reliable. I don't consider resale value here as I don't intend to sell it. It's been perkin' along for 10 years now, never skipped a beat.
BTW, it's a P11, of course. I haven't seen a PF9, yet.
You know more about your bank balance than I do. I don't think either gun is a bad firearm. Spend how you wish. I don't consider the Kahr a Ferrari, either. That'd be more along the lines of custom one off race gun 1911 or something, maybe some hand built 1911 on a lightweight officer's. This comparo, assuming the Kahr really is better built, is more like Toyota Camry vs Lexus. If you got the money and just want it, drive the Lexus. I'll get there just as surely with my Camry.