My story is similar to that of tasmania guy. During my high school years the C64 was very popular, it was the thing to have. For most it was a gaming computer, but this one friend and I used our machines for more than just games. He even went as far as writing a couple of simple games for it. I still remember our long assembly debugging sessions.
We were aware of the Amiga from reading computer magazines. It had high appeal, both from specs and from the view of an existing Commodore user. No one in our small town had the money or the inclination to get the A1000. Many years later, my friend was the first to move to the Amiga (A500). I went over to his place to check it out. After seeing Test Drive and F/A-18 Interceptor I was convinced and determined to follow the same upgrade path. Being a broke student, it took me about a year before I could get my very own A500.
That was the first Amiga moment. And I've had other Amiga moments after that. Sometimes from witnessing the power of a new peripheral and matching software, and other times when seeing new Amiga models, e.g. A3000, A1200, CD32. I remember when I saw the Microcosm intro on a CD32 at our local Amiga re-seller. This in an era of Super Nintendo and Sega Mega Drive (Genesis). And whilst not an Amiga per se, when I first saw the Casablanca video editor being demoed, I really wanted one.