Gambling in Canada is big business. Last year, all legalized gambling contributed $13.7 billion in net revenue to governments. Casinos contributed 34% of that total. While this certainly sounds great, some research shows that governments that build casinos don't always spread their new wealth as expected. Instead of building roads and schools, for example, there is evidence that governments use gambling revenue on other priorities like debt reduction, which don't have the same immediate impacts on the people living in the shadow of the casino.