It's about first-time-experiences
As far as I remember, I found music, movies and games much better in my childhood. Because everything was new for me I was all the time impressed. Nowadays I am spoilt with state-of-the-art games, movies and music. Everything is saturated. I have heard or seen it before and all these media add little new to the gamma of experiences I already have.
The Amiga (and the C64) are part of my childhood. It was a time when everything looked possible because I simply had not seen it before. With emulation I want to somehow relive this first-time-experience, but it will never be that unique and shining as it was in my childhood.