Where would you spend $$$...new CPU or a GPU water block?

As I mentioned earlier in this thread, not in VR if you are mostly GPU limited, which I was even when I had a 3080. The 5800X3D will improve FPS in some rare CPU heavy scenarios, but in general will make negligible FPS improvement in VR for most of the scenarios in which you are likely to fly. The smoothness improvement however is something to behold …