I just completed my last upgrade to my system with a new SACD player and consolidating my electronics into an integrated amplifer / pre amp as well as some cable changes and simplification. I don't plan on any other changes unless something breaks where it's not fixable. That being said it was also an improvement in the overall sound.
Have you reached your end point with this addictive hobby?
I wonder if out there somewhere there’s a support group called Audiophile Anonymous 😂 that addresses Audiophiles constant need for perfection. For my self I would probably benefit from a couple of these group sessions. Putting humor aside there’s some truth to this hobby being addictive and at some point there has to be an end point where you are there and the need to upgrade serves no useful purpose. I can’t say I’m 100% there yet, but something inside me tells me I’m getting close to hitting rock bottom and when I do maybe I’ll see the light, or maybe not 😂!