I only have one Kimber, so my opinion can't be taken for much, but I do LOVE it! I've got the Classic Gold Match. I rented several Kimbers before buying, and found that I was just more consistently accurate with the Gold Match. That made it worth the extra money for me.
I am told that the adjustable sights are not very high quality, that they will break on me. In fact, a buddy of mine wanted me to buy a BoMar right away. I decided to wait until my crappy sights broke. I now have about 1,500 rounds through the gun and the sights are still just fine. When they break, I'll get the BoMar then.
There's nothing like the trigger pull on that Gold Match... Ahhh!