@ret "Film grain is good"
Nah hollywood (conceptual) just loves tradition - heck a good number of movies are still shot at 24 FPS because it's "cinematic" (because movie studios preferred the resolution of film over the framerate of tape (read: television) once it came out), and there still are some film-based content delivery options (IMAX for example), so it's likely "until people start complaining we'll just assume they want it because that's how it's always been"
completely forgetting that even if people do like something you can still fuck it up