I like the Kahr pistols, but I think the sweet spot is the 9mm Kahrs. I own 3 CW9's, have given 2 away as presents, a CM9, and a PM9. My daily carry is a CW9. I have owned a P45 and a CW45 and didn't like either. The P45 had problems, and Kahr was not very responsive to getting it fixed, so I traded it for another CW9. I thought I would try another .45, and bought a used CW45, but it was not the sum of it's parts, either, and recently sold it.
I actually see quite a few Kahrs on the used shelves... mostly the sub-compact CM/PM models in 9mm and .40S&W, and the .380's. I was temped to buy a .380, but I understand they are very hit or miss with functioning... and I just decided to stick with the CM9 or PM9 if that's what I need. What I don't see on the used shelves are the steel framed K- or T-models, etc. From what I've heard, people that buy them, hang on to them. I'd really like to get me hands on a K9... but that price tag will prolly keep me away.