@deep_333 Agreed. I think you reach a point where, you become so used to a particular sound that the thrill is diminished. That's when you begin thinking about changing it up again.
I run my system as a "playback studio" that enables me to change it up 9 different ways from Sunday, to borrow an old cliche. This way I can alter the presentation in any way I like electronically, instead of swapping equipment around. The only equipment changes I've made in the past several years was to replace failed or failing components.