I'm like you, I have no problem with non-smoking restaurants for the same reasons as you.
Before we moved, the only restaurants in Delaware we ate in after the ban were the ones that had been smokefree prior to the ban that we had eaten in. I try to avoid going there except in nice weather and then I only go to places with outside seating. The ban went into effect in the winter, so going out was not something we did often. But living in Dover, maryland was very close.
I left Delaware for lots of reasons, so I find few reasons to go back very often.
Ironically, I only go there for the cheap cigarettes. LOL