Performance takes a huge hit when using RT so until they can figure out ways to reduce the impact then it will not be a feature most will be able to use let alone afford. Those with 144Hz screens are certainly not going to be sacrificing fps for some visual effects which tank performance but give similar results to older techniques. If more consoles games use the effects then perhaps it will become popular but for now it's not a priority. I certainly wouldn't be handing over £800 for just RT in a few games.
Yup, right now all they can do is bung in more rt cores and rely on upscaling, at some point presumably they're going to have to make tradeoffs in the die as to what takes priority for rendering and that's likely the turning point as to what's the main rendering method.
So far in the examples i've seen nothing really makes me go "wow", in person the only game i've played with rt on was BF5 when i was doing a 2080ti build a couple of years ago for someone. So i'm open to the possibility that maybe seeing it playing on your pc instead of watching a video makes it look more impressive, though in bfv it was very "meh" to say the least. I was running around on the amsterdam map inside that building with the shiny marble floor looking at reflections, and seeing some in puddles outside and that was about your lot.
Video i recorded of it at the time, 1080p res ingame.