Appreciate you sharing your thoughts. While I can see your point about not all vintage tubes live up to their reputation, I have a different take on trying vintage NOS tubes. Just like anything else in audio, NOS tubes can be easily a misfit in any given application. To @macg19 point, NOS mullard’s performed admirably better in his DAC versus phonostage.
Whether NOS tubes are worth chasing depends on your goals, system resolution and budget. If your system or a tube component responsive to tube rolling, then it’s totally worthwhile to chase the best possible NOS tubes that can further elevate your emotional connection with music. YOLO!
I picked up another nice album off Amazon, Ben Webster - Plays Duke Ellington.