Thoughts on the 3070.. and up line?

[Zouji]

It is like people raving over gold plated audio cables. You will not be able to hear the difference. Some people might be able to but that number is far less than the number of people that actually make claims to be able to tell the difference. Just like some people are tetrachromats where as the vast majority of humans are trichromats. 

There is a limit to what the brain and the eye are able to process. A better video card will allow games to run smoother and a bigger monitor that has more color depth will allow you to see things easier. I'm guessing that that is what they are actually talking about rather than the refresh rate. Or the monitor/video card/other things may have other effects to smooth out the transitions between each frame to reduce perceived motion blur. Motion blur is caused primarily by your brain interpreting the images rather than by the images themselves. Brains are lazy and take lots of short cuts. 

Also they don't want to seem like idiots for shelling out hundreds of dollars on something that doesn't really provide them with much benefit. That and/or they may be getting a sponsorship/free product to promote the item.