Just my opinion, I think you're correct. It's much like still photography, where the megapixel hype is used to drive more sales. They get people believing that you must have a camera that produces images of a bazillion mega-pixels, because those low-res, older models, the 6, 8 or 10mp cameras can not produce sharp images larger than a postage stamp. Huh? How did all those billboards come to be? They had no problem using 6mp cameras to produce them.
It has to do with proximity, how close do you want to view your whatever product, video on television or still image on a wall. This 4K hype is fine for these huge televisions where you can view them from the other side of town. In the same room, a smallish room, you're not going to be able to tell the difference, well other than the weight of your wallet.
Ron Petersen, Web Board Administrator