There is a point of diminishing returns, but you pay for the additional performance at the margins. In my experience people aren't spending that kind of money for ego, generally if you are going to that level of optics, there is a very specific reason for it and it wasn't met until the end user got to that level. years ago scopes with a consistent zero stop started at 2k, so to get that you had to invest at least that much. things have certainly changed and move forward for the better.
all that said, you'll only know what you need or best suits your application and your eyes by getting behind the optic. I've always said different eyes see and perceive things differently.