I'd gauge system performance by enjoyment level. Definitely not cost. Does it make you happy, check all your boxes, and hold your attention every time you listen?
What is Your End Game System?
How do you "measure" your end game system? Is it by budget, how much it cost? Is it by the luxuriousness of your build and room?
Is it by your components being either state of the art or unobtanium? Is it by the satisfaction you get when you are sitting in your listening chair?
What is your end game system and how do you know when you have reached it?