The Friday File: Include all forms of gambling, in 2015 the total spent in the US was $104.1 billion, of which $20 billion was generated from state lotteries. As for casinos, $38.3 billion was wagered in commercial casinos and $29.3 billion in Indian casinos. Amazingly, Rhode Island depends most heavily on gambling revenues for the budget at $457/per person. Only Hawaii and Utah have no forms of legal gambling.