Well . . . Ruger tried, with the Gold Label. Maybe that scared off the others. And Remington and Marlin are now the same company.
Ruger was trying to roll their own. Guess they realized after the initial attempt that it was cost prohibitive.....at $1950. The last MSRP on their website was like $3200.....I think they saw a limited market for a high priced shotgun and finally just pulled the project. And, it's not Rugers thing to go outside the company to have guns built.
I'm sure sales for the Rem O/U were not great (as with the Marlin LC's) and probably cost increases were in the wind with their foreign MFG connections.........so, the Rem doubles were dropped. The LCs will probably be discountinued shortly (I think bringing out the LCs was a big mistake anyways).
How about the S&W Turkish made doubles? Will they survive? I'm thinking not!