To answer your question about why a smoking ban is bad for a poolroom owner. I am speaking as a former owner of a room that was forced out of business by a smoking ban. It is bad for a poolroom, because even though the majority of people no longer smoke, I consistently had a minimum of 60% smokers in my poolroom, no matter the day or time. The people that didn't smoke were almost always with a smoker. It was very rare that I would have a table of non-smokers. Why you may ask? Because the used their right TO CHOOSE not to go into my room because of smoking. Letting the market decide is really the fair way for a room to go no smoking.
That being said, the APA Nationals should be non smoking. Why? Because many of the folks that don't smoke would NOT CHOOSE to be in that environment if they had other options.
In my mind the smoking hysteria is a bunch of crap. For every person you tell me died young, I can tell you of 2 smokers that were still around (and smoking at 70+). Before I get flamed, I haven't smoked a cigarette in over 13 years and I am a cancer survivor (cause by global warming, not smoking

). Given my choice, I would NEVER go to a business that allowed smoking (except one that would let me smoke an occasional cigar). But that is the key word. That I CHOOSE to go to.