I didn't read it all, they lost me early. I think system synergy is and has always been the key. High dollar systems can sound amazing or they can sound like crap. Money has little to do with it other than the cost of top shelf loudspeakers requires a minimum buy in.
The Law of Accelerating Returns
I totally agree this letter from the editor of A-S.
It makes sense if you have a $10,000 high quality integrated and stick a $500.00 TT with a $300 phono section, a $400,00 Topping DAC and stream through your phone you will never know the real potential of the $10K integrated. And don't get me going on speakers.
This article makes total sense but one must live within their means.
No you do not have to spend a left lung for great sound but it all needs to be balanced.