>>296007524
For movies specifically, the OLED allows for deeper blacks and doesn't have distortion during scenes of high contrast. I've also seen posts of people mentioning they they still rather watch movies with their Rift S (also LCD) instead of their Index upgrade. Apparently the specific lens used by the Index contributes to god rays. In games, I'm sure the better FoV and refresh rate make the drawback neglible, but for a movie with the user sitting down, I wonder if the color fidelity might be preferable to the index's other clear advantages.