The mob was gone from the casinos by the mid-1980's. They still hovered on the fringes of things up through the 1990's in the form of slot machine cheating, telemarketing scams, loansharking, escort services, etc. But by the turn of the century the feds said there were only about 10 made members left living there. And if you look over the past decade since then, besides the mob's sports betting networks which still reach out there, there's been really no mob activity beyond the Outfit-connected Crazy Horse Too strip club getting busted in 2003. It's not just a matter if there are businesses in a certain area to be exploited. It's also a matter if there are still the resources to do that. Vegas and the rest of the west is very far away from where most of the mob's presence is now.