After over a year of experience here in Chicago, now that the fanfare has worn off and the lobbyists have moved on to other states, it's clearly obvious that trying to ban smoking in small neighborhood "shot and beer" bars is pretty useless. Many small bars in my area ignore the ban to keep their customers, neighbors, and local police (many are patrons when off duty) satisfied. In areas where real crime is an issue, the problem of undesirables being attracted by groups of people outside the bars and causing disturbances on the PUBLIC street, property that the owner has no control over, far outweighs the issue of people peacefully smoking inside a bar, bothering absolutly no one, Bars ignoring the ban also result in fewer kids being exposed to more smoke than ever before at home when adults gather at their homes, instead of at a local bar. Having kids exposed to smoke at home just gives the ban fanatics a reason to want to ban smoking in private homes, which is already happening in California. Once started, these bans never stop.

Why did Kansas exempt Casinos in their smoking ban?

I think the answer is because the state hopes someday to generate a lot of revenue from gambling and banning smoking might be bad for business.

It certainly gives an unfair advantage to these casinos as compared to other places of business.

Insane laws, enacted by insane people are usally inspired by greed.