Please don't mix frame interpolation up with actual higher framerate content. They aren't the same and never will be.

People thought the Hobbit was weird because it was unusual. If your eyes suddenly went digital and operated at 24 or 48 fps, you'd think the real world suddenly started looking extremely weird too.

High framerates without motion blur allow the eyes to function like they normally do, even when watching a recorded image. There are diminishing returns, but in certain circumstances, even 300 fps could be helpful over "just" 60.