As far as the market, it is adjusting to the smoke-free demands of patrons. People have cited restaurants that have banned smoking--on the smokefreedc website there is a listing of 193 (though some such as CF FOlks and Firehook bakery shouldn't be that surprising).
Several bars are now open that advertise the fact they are smoke free-- such as Halo the bar across from Whole Foods and Clardendon Ballroom (though that is across the river).
If people really want smoke free bars they will "vote" with their pocketbooks, propreitors will notice this fact, and more smoke free bars will open.