Years ago, I had.
I had a wonderful JRDG preamp paired with a Cary CAD-280 tube power amp. Wonderful remote controllability married to 2/3 triode and 1/3 ultralinear EL-34 sound.
The sound from my ML CLS speakers was so musical, so seductive, and so beguiling. I wished for nothing.
Then when a tube (or tubes) would start to go bad, the expectant anxiety would begin. Ruining my bliss.
Then we moved. I put it all in storage, saved up my nickels.
When we finally settled, I had enough saved up to buy an endgame set of SS Pass monoblocks. Warmish but no tube noise. No anxiety.
So now, I’m not really on the endless treadmill of upgrades. Just doing some long-needed tweaking of power cords, etcetera.