This paper explores the fact that when video lottery machines were turned off in South Dakota, the inquiries about gambling and the number of individuals receiving treatment for problem gambling diminished abruptly. When the machines were turned back on, there was a prompt increase in both of these categories.
These changes occurred despite the fact that alternative forms of legal gambling were available (i.e., scratch tickets, Indian Reservation casino gambling, and multi-state lotteries). This suggests that video lottery gambling machines presents a unique risk for the development of problems severe enough to prompt treatment. These data suggest little substitution of other forms of gambling occurred when video lottery gambling was not available.