Hal Duponts operation in Florida handles both Krieghoff and Kolar - both very nice guns / here's a link to his site.
http://www.halkguns.com/
Even if they are a little beyond your budget right now - at least take a look at the website, marvel at the craftmanship. Just because its expensive and very well made - doesn't mean it will shoot better for you / but they are a pretty good investment in terms of resale value - and they are made so reliably and precisely that 50,000 shells or more will not result in any problems.
I still think Browning, Beretta in terms of O/U's give you a lot of gun for the money ( $ 2,500 - $3,000 ) these days - and 50,000 rounds out of a Browning is not uncommon either / and while the craftmanship on Browning or Beretta is pretty good / it falls way short of the " K " guns - as well as short of the guns in the next tier down, below the K guns ( Perazzi, Blazer) in my opinion.
Personally, I own about a dozen Browning O/U's - and shoot them every week - and its not my guns that ever costs me a target.
I think most of us, or me at least, got your point Waterengineer. ( I had a company car, in the late 70's that was a " K " car - what a piece of junk that thing was ) after a year, the company dumped all of the K cars - and we went back to GM products..... Buick at that time / and they weren't great either, but a lot better than the K cars.