I used to go to the Redmond Town Center about once a month for a few years. The place definitely needed an upgrade. Some of the theaters in there (especially the two closest to the concession stands) had horrible sound systems and seating.
I've heard about these kinds of theaters opening around the country nowadays, but I still haven't been to one. I've heard good things. The most common theory I've heard from people is that they're priced really high to keep out the teenagers, and people are willing to pay extra for a better experience where you can keep the teens out.
But I'm with you Denny. I might go to a place like that once for the novelty of it. Unless it turns out to be some kind of orgasmic experience, I don't think I'd be going back any time soon.