I wonder if we're focusing on two different things here. I'm not thinking so much about the merits of the 24fps video experience vs. the 60fps video experience. I'm just focused on clean playback of the source content. If something was recorded in 24fps, I want to see it in 24fps. If something was recorded in 60fps, want to see it in 60fps.

I'm more complaining about the automatic 24->60 (or 120 or 240) conversion that's enabled by default on a lot of new TVs. I'm not at all opposed to higher frame rate video, I like it. I've just never watched something on a TV where the 24->60 conversion didn't look significantly worse to me than playback at the native frame rate.

Maybe my unconscious assumption is that people's preferences about the ideal frame rate can change over the years, but that reinterpolating the video to a different frame rate will always look worse than native, regardless of the source and destination frame rates. Maybe this isn't true, but that is my assumption.