Why are people talking about $1300 cards? The 2070 is like $450 or so, and I picked up a 2080 for $650 or so. Those will do RTX just fine
Also, by the time this comes out, there will be the next gen of RTX cards out. I plan to sell mine and make that step up, and it shouldn't be much difference in cost. I used to keep my graphics cards for many years, but I'm going to try the sell and buy route now to upgrade.