My wife and I might prefer smoke-free bars and restaurants, but quite frankly, there aren't any good ones. Bars and restuarants are typically fragile, anyway.
Anyone who has paid attention has noticed that more often than not you'll see the same building used for one restaurant, then another, as various new management comes in to try their luck. Even slight changes in menu, decor, prices, or staff can doom a previously successful restaurant or bar.
...And a smoking ban isn't a "slight change." Yeah, not smelling Marlboros all night long might be preferable, unless the option is losing the restaurant or the bar altogether.
And if I can't smoke the occassional cigar at one such establishment, then I'll probably spend my money elsewhere. In fact, even IF I never smoke at a restaurant, it matters that I could or could not.
So these legislative smoking bans have got to be crushing the businesses that get unfairly trampled by such state mandates. Some percentage of old customers are either going elsewhere, or smoking (and eating and drinking) at home, and that's a percentage of high-spending customers that few bars or restaurants can survive without. These are marginal businesses, so it *matters* if they lose some margin of their customers.
And once restuarants start going out of business due to the bans, then the non-smokers have fewer eating options as well. So everybody suffers.