Because you are a preservationist. Because streaming libraries rotate content. Because the "Atmos" logo on Disney+ doesn't tell you it is lossy. Because when you watch Avengers: Endgame and the portals open, you want to feel the rumble, not see pixelation.
A 4K Remux collection of the Marvel Cinematic Universe (MCU) represents the absolute pinnacle of home cinema quality Marvel Cinematic Universe Collection 4K Remux