Prices have not gone up noticeably if at all. The simple observed fact is this: more people are out more often spending more money. This increase is likely attributable to a number of factors.
And, again anecdotal evidence wise, I hear more people laud the ban than bemoan it. For better or worse our society is more aware of the inescapable long term tragedy that befalls smokers and is reacting to eliminate it.
Most people my age (first tier boomer) have watched a relative waste away from LC or strangle slowly from emphysema. We don't want that suffering in our lives. In part these laws are a reaction to the ugliness of the kind of death brought on by decades of smoking.
I do agree that this kind of law is intrusive and I would not vote for it if in a position to do so. I do enjoy the results.