@Ray Egan

Red Epics already shoot at these framerates, so they aren't going to get cheaper to make room.

That's the thing that made the most sense to me though... The camera and displays needed to make these movies exist NOW, not in some lab, but they're already on set, in the studio, in the cinema, and in your home. For 3D, we had to get new camera rigs (or new cameras), new monitors, new asset tracking pipelines, new software, glasses, etc. But with this stuff, we've ALREADY bought it. We just need the projects using it greenlit. We do need some changes to DCP, though, as Doug Trumbull found that they had to hack it a bit to do the 120Hz.