Hmmm, my 4k LG OLED TV's regular 1080P HD is outstanding. Really outstanding. Much better than my upstairs LG regular HD TV. It's so good, it's honestly difficult to differentiate between the 1080P and 4K content on the OLED TV. Point being that a good 4K TV most certainly WILL produce better results than a lesser grade 4K TV. So buying a good 4K TV over a good regular HD TV does make sense.