Only Apple Cider??

Right now, I am in the car heading back home after a long weekend in Door County, Wisconsin. We spent four days enjoying the beautiful fall colors, the Green Bay bay, delicious apples and cherries. We stayed in a cabin in the small town of Ephraim, which has a population of around 200 people with no cell phone service or internet connection. Ephraim is the only dry town in the state of Wisconsin. And by dry, I mean that it is illegal to purchase or sell alcohol in the town. There are different pros and cons to having a town without alcohol. In a way, it makes the town more family friendly. It is unique and so not the norm in our modern era. This law takes root from a belief that the original Moravian (Christian denomination) minister had. He believed that there was no benefit of his followers consuming alcohol. This belief has not only continued as a tradition in the town over 100 years later, but has also transformed into a law. On the other side of the argument, some restaurant owners do not like that they can't serve wine or beer with dinner. They believe this law actually hurts their business. Is this law constitutional? Is it a good thing that the town as a whole is not conforming to modern society? Should they change?