I spent a lot in the past 2 years but the goal was my "End Game" system. My biggest purchase was my amp. I revamped my system in reverse. I bought speakers that will serve me well for a while , but still knowing they probably would not be my last.
I spent on my amp and am having a preamp built by the same manufacturer to compliment it. Those two pieces will definitely be end game.
At some point I will upgrade my speakers , the electronics ( amp & pre) will not be outclassed by a "better " speaker .