SKB I think some people want any gun they spend 8-10K on to look nearly new. Some will be happy with just a simple cleanup but others won't. It's those owners who keep serious gunsmiths going and perhaps pulling out their hair a bit. People with guns which look to be high condition tend to be a little picky. I've known a couple who were an outright pain in the .... I am glad I never had to do a job for them.
As to the price it does not surprise me at all. While not the rarest Fox it is a very rare configuration you have to figure you won't see very often again if you pass it up. I think this is the third one I've seen or change hands in the last year or two. If they made more than 20 in this combination I'd be surprised. That's a decent percentage selling but they might be 20 years off the market now. How soon until the next one pops up for sale? Now if it were a 32" 20 CE you could see the big checkbooks being opened.