Not sure about WI or MI but here in IL where the ban has been in place for over 2.5 years I think our bars have done just fine (please correct me if I'm wrong). There was all sorts of fear and anger from the bar owners, saying how they'd probably have to close their doors, they were on the news virtually every night about it. But bars everywhere are still open and pretty full at that (again, where I've gone). When smokers need a puff, they step outside into the shelters the bars put up for them. Being a non-smoker myself, I LOVE going out for a drink and not having to worry about my clothes and hair REAKING of smoke.