Perspective is everything.
To some (maybe most?) here my vintage audio system would probably be considered "mediocre" at best; especially to those who wouldn't think twice about purchasing $5K cables, $10K speakers, etc. I'm sure if I offered it up for discussion and asked for critique I would receive plenty.
Yet, to the average "layperson" who maybe recalls memories of a Dad or uncle who had a higher end system back in the 1960s / 1970s... my system might be looked at as phenomenally good.
Very different perspectives regarding the exact same pieces of equipment and setup.
I will say that I have found satisfaction with where I am now - and I think that is an undervalued position to be in. I do, however, totally understand that for some in this hobby, it's the excitement of the chase, so to speak; the endless quest for improvement - whether through actual scientifically measurable progress or just in the "this sounds better to me"... I don't feel the need to debate either methodology. If that's what floats your boat, it's all good.