When did we decide that 24/25/30fps was good enough? Now we have a Blu-Ray standard that cannot handle greater than 30fps, and media corporations that are unwilling to release content via any other medium.
Put that together with ever-increasing resolutions, and the amount of pixels something moves across from one frame to the next becomes greater, and video looks more and more choppy.
Franky, this is a much bigger problem than NTSC ever was. Even with content (The Hobbit, Billy Lynn's Halftime Walk) being created at higher framerates, users have no way to get the content outside of a specialized theater because the Blu-Ray standard cannot handle it, and because people seem to honestly believe that higher framerates look bad.
I suppose we can only hope that creators take better advantage of digital mediums that do not have such moronic, and frankly harmful, arbitrary limitations.