My 2 cents on the smoking ban...
It only hurts pool halls when it's applied half-assed. Up here the ban is province wide (so equivalent to state wide). No one can smoke in any bars, any pool halls, any restaurants, malls etc period. Basically, you either smoke outside or you stay home. Since most ppl don't want to stay home, they just get used to smoking outside.
This sort of province/state wide ban that encompasses a large georgraphical area and applies equally to all business types isn't going to hurt businesses simply because it doesn't leave the smoker with any viable alternatives. They basically can't take their business elsewhere, because there is no elsewhere to take their business to.
When smoking bans are implemented at a city or county level, that's a different story altogether. In that scenario there are viable alternatives someone could reasonably drive to, and that does hurt business owners.
Serge