If a person has no interest in RT then anyone with a 7800+ doesn't really need to upgrade anytime soon. Myself for example, I turn RT on in a game and say "oh shiny" then turn it off again. Correct reflections and shadows have never been important to me and I'd wager it's the same with the vast majority of everyday people who just want to play games.
Do you have a high end GPU?
I hear ya, but I also know from experience that some people who buy high end GPU's is cause they want to max out all the settings and if you're not then what's the point of a high end GPU right
Maybe it's all about framerate now, things have certainly changed in the gaming landscape, I come from a time where when I first started PC gaming, people who had high end GPUs could get an advantage in multiplayer games due to the vast differences between low and high settings it was almost like two different games back then. And now low and high almost look the same in just about every game