After a prohibition lasting more than two decades, Americans outside Nevada can at last bet on sports without breaking the law.

The newfound freedom is thanks to a May ruling by the Supreme Court that overturned the federal law blocking states from legalizing sports betting. Since then, the four states that have now joined Nevada in offering legal gambling on sports are already reaping the benefits, collecting millions in tax revenue and licensing fees. More importantly, legalization also undermines the vast illegal sports gambling industry — a win for consumers and sports integrity.