I think Westin did the same thing. According to signage I saw at a recent stay in Denver, they went non-smoking company wide, too. I am prefectly happy with this as a non-smoker. It will be interesting to see if smokers go elsewhere and impact these businesses.
We will go elsewhere and yes, it will impact their revenue. But they are big enough to sustain the loss, I imagine.
But when it's vacation time, or our dime, we won't spend money where they won't accommodate all peoples. Smokers and non-smokers a like.