My first toe-dip into poly pistols... was a used Kahr CW9. I was looking for a replacement for my then-current carry piece, a Colt Gov't .380, and thought I should give the ever popular poly pistols a look. I was at my FFL, and he had a used CW9 for sale, relatively cheap... so I said this would be a good chance to test drive a poly pistol, before I decided I didn't like them. That was really my intention... to buy it, run a few mags through it, decide I didn't like poly pistols... or even striker-fired pistols, dump the junker at the next gun show, and move on with my life. Wrong.
What I found was a very compact pistol that was comfortable to shoot, had ergos similar to the 1911, was accurate and reliable, at a cost that wouldn't have me crying if it was lost in a shoot The CW9 filled the inside straight I was hoping for...
After proving itself at the indoor range, I took a case of ammo with me to the NV desert to put the pistol through it's paces... that was over 10 years ago, and our honeymoon continues. Since then, I have bought about 8 CW9's... some were sub-par and were moved on down the line, some were given as gifts, and I still have 3 in carry rotation. I've had one stolen out of my truck, which validated my thoughts on losing a pistol for some reason... although I did get the pistol back, it took 7 years while Dallas County prosecuted the crime. I've dabbled with other Kahr variations, including a CM9, a PM9, a P45, and a CW45, but the very sweet spot in the Kahr lineup is the CW9 (and similar sized pistols.) A K9 is on my To Do List, if I can ever find one that isn't a zillion dollars.
From an impulse buy for nefarious reasons... to a pistol I live with every day...