I too come from outside the Amiga community. When Amigas were still on the market, my company was selling 68K based multi-user systems starting at $999.
Like the Atari user who posted earlier, my main connection is the 68K processor.
My current fascination with the Amiga community stems from the fact that it is the only M68K based system that is not only not dead, but is alive and continuing to see new developments in hardware and software.
I think its very cool that I can run unmodified 68K code under MorphOS on my Powermac PPC based system. Amiga related OS' are compact, efficient, and have very quick booting times. With NG OS' we have software that makes our systems practical substitutes for common PCs.
How many other retro systems can claim this? None that I know of. We may sound like fanatics, but personally I think it's just pride in the resilience and vitality of our market.