Nope, not trying to score points at all. I think it's a fair observation.
I'll grant you this. I don't think it can be absolutely proven that those sets *couldn't* work, unless someone wanted to put their money where their mouth is. Alas, I don't think you'll find a single studio willing to make that gamble. Yes, that's a shame. As I've said already, *I'd pay to see it*, but I've yet to see anything that convinces me it'd be financially viable.