what McB said -
I'd agree that classic S&W revolvers are "high end"...
I got the impression the OP was also asking why there aren't more makers of good DA revolvers.
and there you have the answers
There are not more really fine wheelguns being made in quantity, because revolvers were so very very popular for so very long, hence lots of classy old Colts, S&Ws and Dan Wessons can still be found at a fraction of the price of a Korth
There are not more really fine wheelguns being made in quantity, because of the mega trend shift to autoloaders. Any random gun shop you walk into, it's a near certain bet that autos will outnumber revolvers on display by a huge margin.
There never was a mass market for 5 figure $$$$$ revolvers or pistolas or double rifles/shotguns, not then, not now. So if mega price is what you choose to define 'high end', you ought not expect a whole lot of selection; scarcity is more a factor than quality in driving extreme prices, no matter how good the quality might be. "Korth" would have to be stupid to do it at $1,000 per gun, even if (in silly scenario mode) they could do it.
How it works.