What you clearly don't understand is almost impossible to explain until you use a red or red footage. But, nevertheless, i shall try. The red looks like film, it looks real it doesn't look like video. The color reproduction, the skin tones, the contrast, its fucked up good. There is just something about a shot from a red that is unique to other cameras, even cameras at its price range. Ive used shots from a studio with a red and it literally looks like you're looking into a 30" window that is placed on a desk in front of you. Sure, the red produces an amazing image but there is so much more to the red then just the image it creates. Color, tones, contrast, sharpness, etc are so much more than just the an "image" that is produced. Among other things, 4k and 5k resolutions combined with up to 300fps at 2k is another completely none-image related feature that only reds can do. Like I said before, there is just something about the red camera, its amazing. But, that's what 28-58k for a body will get you.
But, i wouldn't really expect you to know anything about this since you only clicked on this thread because you decided to meander into M&A cause you were bored.