An interesting way of seeing the upgrade/perceived improvement phenomena, is to witness a fellow head-fier. They may even ask you what you think, and even with all this being personal taste, you can still witness the side-stepping purchase in progress. It seems the view of the painting is so big that to see the whole picture is harder than it looks.
At times there is a profound over-all upgrade but at times it is tricky. Tricky when you tunnel vision in on a perceived change/improvement so much as to miss the other changes. That new flavor will loose the warmth for detail or not have an attribute somewhere.
At times we think we find an improvement to take place only because we really just want an improvement. Manufactures play the coloration game only to help us on our terminal illusion process. Hind-sight is always 100% 20/20.
Brilliant quote. It was perfected a long time ago. We are now only enjoying a digital revolution in regards to; computer= to that perfection. Mmm.. me thinks it will be the the philips TDA1541 that we'll all come running back to. It's the music that matters.. Right?