Reservation officials hope the casino will attract between 5,000 and 10,000 people a day.
And some tribal leaders have voiced concern that the casinos might attract Indian gamblers.
Like gambling venues everywhere, casinos attract crime, and can prey on compulsive gamblers.
Supporters say casinos will create jobs, attract tourists and generate millions in tax revenues.
Moreover, the financial casino is attracting the same players who tried to outsmart Las Vegas 25 years ago.
The two men's concern is that casinos will attract organized crime and other undesirable elements.
These casinos can provide jobs on the reservation, attract tourists, and bring in money for tribes to fund education, health, and social service programs.
Since it opened this spring, the casino has attracted an average of 10,000 visitors a week.
Further, in addition to hurting the already ailing horse racing industry, large casinos would attract business from restaurants and hotels, the report says.
"The casino attracts 6.5 million people a year," he said.