1) That it is ok to cry when listening to a piece of music
I wept openly the first time I heard Keith Jarrett in Koln through my all tube system
2) That listening to music through a pair of decent headphones through a dedicated headphone amplifier (my choice being valve amplification) can give the same or in certain circumstances more of an intense listener experience than listening to the same piece of music played through a full size system.
3) That I have to stop lying to my wife when I tell her that this is the last piece of kit/tweak and I am satisfied with what I have (I am satisfied with what I have but there is always that further tweak just around the corner gnawing away at my sub conscience).
Cheers
Mark