Technically, I paid $1000 for a Browning Hi Power with a two tone finish and adjustable sites.
I bought the gun and paid $475 for it when it was new. Many years later I traded it off on a Glock that was around $550. A few weeks later I went back and bought my now used Browning back for $550, so in essence, I kinda paida grand for it. It was very much worth it though. Traded the Glock off later.
Really the most I ever paid for a gun at one time though was $800 on a Colt Python Elite. For years, I couldnt justify paying twice what a Smith 686 cost, but comparing them side by side, the Python was so smooth compared to my older rougher Smith and better balanced to boot.
The best way to buy a pricey gun is used. I have a whole arsenal of second hand .45's like the stainless 1991 a-1 I paid $410 for.