There are so many experiences in my life that validate this. It seems that all meaning is derived from some form of comparison.
When I bought the ‘Korg Pa500’, since I dint have my old keyboard for comparison, I must have lost almost 60-70% of the pleasure. In childhood my dream of owning this was magnitudes higher, and I would have been ready to get up even at 3am to play it for just 10mins. It has somehow diminished quite a lot from that intense state. However, the 40-50% of pleasure which I got from using my memory was quite a lot. Another friend visited me and he had unreasonable expectations from the keyboard, for e.g.: the grand piano should sound like a real grand, so he immediately remarked with condescension. That’s what made me think, the keyboard was uniquely valuable to me because of my own experience blueprint with previous instruments and music in general.
I uniquely enjoy certain activities and I can clearly see how my blueprint of experiences creates this for me.