As usual lots of people commenting on RT and DLSS 2.0 that can't try it looking at the cards in their sigs.
As someone who came from a 1080ti not RTX card. I played control on 1080ti and played through it again on my 3080.
DLSS 2.0 does a phenomenal job with RT on in that game. Like all game effects, you need to play the game and get into the atmospheric environment to appreciate it. Having a quick google on youtube to see if you like it or not isn't how immersion works.
Neither are the b all and end all, but like people with OLED and full HDR. RT, DLSS doing a great job (particlulalry at 4k) they are the same as all the other in game effects to help produce a better more fluid IQ. DLSS goes a long way to be able to get very high framerates @ 4k making 4k 120hz possible for those that can afford all the bells and whilstles. Not everyone still games at potato 1080p resolution, enthusiasts want more and who would not want 4k 120hz, proper HDR, RT, and whatever other effects make it more realistic?
Both the AMD cards and Nvidia cards this gen are beasts in normal rasterization, you couldn't feel the difference between them or perceive it. But Nvidia at the moment do offer a couple of selling points that for some, with games that support it a winner for people who game at 4k high refresh.
Any AMD or Nvidia card from this gen from a 1080ti or less is a monster upgrade if you game at 1440p +. Jakcet man was right when he said finally, a reason to upgrade from a 1080ti. And that goes for the AMD cards as well.