The inherent problem with the HiFi journey is that it’s build on dissatisfaction.
Dissatisfaction/satisfaction is a choice -- you needn’t be dragged along on an unending path of unquenchable craving. It’s up to you to decide when your system is "good enough" . This is not only true in audio, BTW.
@mahgister refers to a "MINIMAL acoustic satisfaction threshold". Perhaps think in terms of achieving that, rather than getting caught up in the belief you must constantly upgrade in search of some holy grail that you may or may not ever reach. A system can simply be an enjoyable way to enhance listening for those who, first and foremost, love music -- it doesn’t have to be all-consuming.