it's been pretty well documented that the ny families willingly sold off their interests for whatever reasons before las vegas boomed, but the genovese family in particular always seemed to maintain a small presence thanks to their connections to cleveland.

one thing that i think gets overblown is operations in las vegas and the skim in general. people seem to be under this false impression that the mob was taking home the lions share of the casino revenue putting aside the fact that the skim itself was divided up. i forget where, but i remember hearing a number being thrown out and while a great long-term money maker, the amount just wasn't what some make it out to be. i'd be willing to bet that juice brought in substancial amounts of money, which always seems to be overlooked.

as far as AC being split among 7-8 families, i guess the source should be looked at! philly was always the dominant family, with lessor involvement form the genovese and gambino families. either way, just geographically speaking there is bound to be more going on in AC today that vegas anyways, so score another one for the all powerful east coast mob!