@seekerbob,
It depends. I might have invested $10K or more that was unnecessary. With real inefficient speakers I might need more power. If the speakers were really warm the combo might not be ideal.
Also I know my tastes and what equipment sounds like what and which is compatible with what. MacIntosh equipment has a very specific sound type… and improperly matched with equipment / user taste can be very suboptimal.
I have fifty years of relentless learning and experience. For folks with less experience it can be overwhelming and just make things all too confusing to manage. I am trying to guide down a path most likely to result in a very happy owner.