Looking at the list, after seven years my midrange 3750K is still in the top tier.
I think the real question should be why should I be buying what I did ten years ago for nearly the same price today as when I bought it? If what I bought is still good, then there is no need to change. When microsoft made the change to a subscription OS, it became obvious that they were not planning on changing it to require faster speeds.
Unless someone can figure out how to double the CPU speed again, there can only be lateral moves (AKA, adding more cores). And if I don't move to new games, then there is no reason that I would need more cores. (This is the reason why to not "upgrade".)