Ray tracing is a much bigger deal than just "one effect". It effects shadows, lighting, and reflections and that's just a general way of putting it. The effects are much more complicated and wide reaching than that. Ray tracing is going to revolutionize the industry eventually just like hardware T&L did back in the early 2000s. It's totally worth it imo but you do you.
Oh I'm not saying it's pointless or anything, not sure where you got that. It'll definitely improve over time and be a bigger and bigger deal. It's just not worth halving my framerate today, on current hardware, simple as that.