I dont think for sure that someone who spend 100,000 dollars is deluded at all....
There is priorities to see BEFORE upgrading for sure : acoustics and ele4ctrical and mechanical embeddings controls but upgrading is ALWAYS possible...
My question was and is about a defined minimal satisfaction threshold defined objectively by some acoustic characteristics and for sure very important subjective factors which are linked to our sound and personal music history ....
No one is the same....Our needs too constraint our choices; i am alone and dont need a room for the family and friends for the enjoyment of music... Costs and gear are then different...
Or, one can try to convince oneself that everyone else who can spends more is deluded. (That’s hard, too. Better equipment -- room and gear -- does yield better sound.)
Happily i never give up about the idea of good sound nor about the way to reach some satisfying level...It takes me time and trials and experiments but i am more than happy now...
I can forget sound easily and focus on music because my basic acoustic needs are satisfied: Imaging , soundstaging, holography, timbre, etc upgrading is possible but a real upgrading but will be very , very costly...It will cost at least ten times the cost of my system...My last upgrade was a disastrous and cost me two times almost the cost of my actual system...
Or, one should give up the idea of better sound and just focus on music only, not sound. (That's hard.)