You’re done! That’s it! From this point it’s all diminishing returns. ;)No you are right someone could always pay more to buy some difference....
This is somewhat true...
The half truth in your claim is that you dont say the essential: half of S.Q. comes from electrical,mechanical and Especially acoustical controls and treatment...At possibly low cost...Most of the times more than the upgrades you love so much....
Plugging new gear in a wall and putting ready made panels on a wall is not audiophile experience and reviewing them is of no use save to sell one....
Myself i sell common sense at no cost.... Try to beat me...Call me a fool...You could not have any other argument anyway....Save the common place fact that higher end engineering may cost a fortune and be "better"....For sure they are better.....
Acoustic, mechanical control, and even electrical noise floor control could cost low money though and are 50% of the S.Q....( The % is a metaphor and change in function of the relation of the gear with his embeddings controls or lack of)
The question is not, save for a fool, which is the better system in the world, but how can i create a very good satisfying one at lower cost....
But common sense is something that is harder to sell.... For sure.....
By the way you seems to not understand the law of diminushing returns at all.... Ask me and i will explain it to you....I dont joke here... You dont have a clue it seems by the unilateral way you use it....