They're in for a big surprise.
It might take a few years but eventually they'll notice a lack of ploppies gambling at the tables. This could lead to a devastating chain of events where the table games are eventually weeded out due to lack of business and replaced by carnival games of machines and clowns in hopes of catering to the slot freaks. At this point there might not be any chance of recovery because the damage has already been done. As a result the casino is forced to fold.
The Isle of Capri in Tunica weeded out their table games and attempted to exclusively make their Casino "The Slot Palace for High Rollers". Within 2 years they were forced to close due to lack of customers.
Hey, the Casinos like to gamble too!