Most of Pennsylvania’s casinos are suing over the taxes on their slot machines. Twelve of the state’s 17 casinos are challenging the tax on ‘games of chance’ that bar owners with ‘games of skill’ don’t have to pay. The difference between the two kinds of machines is a 54-percent tax, according to the casinos. Pennsylvania law describes the difference as between a game where skill determines your odds, versus traditional slot machines which are purely games of chance. Governor Josh Shapiro has proposed a 42-percent tax on games of skill, but lawmakers haven’t taken up that idea just yet.