[lbatx]

That would not be true (at least in Las Vegas). For one, the vast majority of customers of Strip casinos are tourists. For another, a casino's quarterly results can be significantly influenced by a small handful of players -- if a player is particularly lucky at baccarat, for example, the swing can be millions of dollars.

Source: industry knowledge & https://www.billionairegambler.com/2011/07/worlds-biggest-ca... (look at the Adnan Khashoggi entry).