So, a bar or restaurant that drew in customers because it was smoke free couldn't compete as a restaurant or bar when it no longer had a 'gimmick' - that makes sense because an obviously inefficient or substandard business folded when more efficient or superior businesses competed with it.

The owner of a store who opens his/her business to the public, including potential non-smokers who might be buying on behalf of somebody else, putting carcinogens into that environment makes no sense!