@jerryg123 all is well, jerry.
"Diminishing returns" does depend on one's measure, and some can be measured, and some are purely subjective...
And if spending more and more money equates to equally more subjective enjoyment, well that's fine, and subjective...
But to think that spending more definitely gets better discernibly better performance in audioland is delusional. I don't think that's any "new news."
So like I've repeated here and in many other places, enjoy what one enjoys. If one is aware of the issues and the alternatives, is educated and informed, then at that point, assuming that the person is rational and well-intentioned, A person can play his chips however he feels fit.