I wonder if MSG will concede and start building these spheres without the external screens. It seems like it would be much easier to get buy in from locals.

I'm not sure how much they would lose on advertising revenue, but if they are trying to proliferate the sphere as a format, like IMAX, then it seems short sighted to force the external screens. After all very few places are as accomodating of in your face 24/7 advertising like Vegas.