Definitely have been to the Corn Palace, I may have even posted images of it here before. I understand they change the corn every year and on the net, one can see old post cards of it. Nice.
Sturgis makes a lot of people know where SD is, no, I haven’t been to it but know many people who have. As for me, maybe the way it was back decades ago might have been a good time. To each their own, I’d go just to see it if given the chance.