People have no idea how much the acoustic, smog, highfrequent noise and magnetism limits the effectiveness of each part in your system. You only have accesss to a very limited level of the full potential of each part.
And again we can proof this with sound over and over again. The sound will always proof the truth. The highend shows in Munic proof each single year that money will never help you or give you a stunning level in sound quality.
Diversity (layering) in sound has the biggest influence on our emotion. So even a mono loudspeaker what is able to create a good level in layering in sound will make us experience emotion during listening to music.
But when you let people hear a system what can reveal all the details and aspects of a recording the experience will become a lot more intense.