Anything that decreases gambling expansion is good with me. And having a court that judges by rule of law and not biased or political shenanigans is also good with me. I'd say the court's ruling on additional casinos in Michigan is a win-win.
Before you post a comment arguing that there is nothing wrong with expanding casinos (do you want us to surpass Nevada in this industry??), take a look at the issue from a different perspective:
Gambling Article from Focus on the Family