Mine was seeing the Amiga 1000 at a Micro Age computer store in the Bay Area of CA. It was running the Boing demo and I was amazed! I wanted one so bad but I was only 14. (I later saw the demo on a Atari 800XL lol) I was into the Atari XL and C64 at the time and did not get an Amiga until 1987 when I finally sold off my Atari/Commodore stuff! I have been hooked ever since. I own every Amiga model except for the CDTV and 32.
