"Life is short. How many months or years do you want to wait to enjoy a new experience? You can sit around twiddling your thumbs and hoping that an RTX 2080 gets cheaper, or you can enter the world of ray-tracing and high-speed, 4K gaming today and never look back. When you die and your whole life flashes before your eyes, how much of it do you want to not have ray tracing?"
The problem with this statement you made is that you actually can't have ray-tracing, high-speed, and 4k gaming at the same time on a RTX2080 according to the preliminary benchmarks shown (nothing even reaches 60fps). By the time enough titles are out there taking advantage of these features, this card will be a couple generations old and woefully under-powered.
Don't get me wrong, I'm all for new tech like ray-tracing. However, early adopters usually end up losing in a long run with a product that doesn't quite meet expectations. And at that price, that's a loss I can live without.