Anoka MN does claim to be the Halloween capital of the world, but I never check it out because there is enough going on in Excelsior.
Every year the Historical Society changes the museum into the Booseum, and the trolly into the Ghost Trolley! How cool is that? Our local garden center puts the most amazing display up, (like 100 monsters/scarecrows). It would be fitting to have a Halloween retailer here. (We do get a Spirit store in a neighboring town.)