For whoever what motion interpolation is also known as is the soap opera effect on movies and I agree, it looks terrible but most people don’t get it, it doesn’t bother them at all.
For me personally, 24fps is extremely close to being unable to perceive motion, and in many movies I absolutely can't see the content.
Any pan in a movie is something where my mind absolutely is unable to process the motion and I become unable to see anything at all. With motion interpolation on, I can actually tell what's happening in an action scene.
According to some neuroscience article that was posted in HN recently, some people might percieve reality in "less FPS." Not only that, but as people age, the speed also goes down. Most people I know cannot discern the difference between heavy motion interpolation and it being off. In the same way, I remember when people weren't able to discern between DVD and BluRay quality in 1080p displays. Even today, many people can't see the difference between a Retina display and a 1080p monitor, which blows my mind.
Any pan in a movie is something where my mind absolutely is unable to process the motion and I become unable to see anything at all. With motion interpolation on, I can actually tell what's happening in an action scene.