I never had an Amiga, but I had friends that had it. It was a superior tech only for a very small period of time.
What happened was Intel, they took great decisions like automating the design of their processors and this made them grow at an incredible pace. The Amiga depended on a different processor that stagnated.
The 68k CPU lineup at the heart of the Amiga was competitive well into the 90's; the Amiga had run out of juice by 1989. The Amiga was only as good as the custom chips. If Commodore kept investing in R&D for the custom chips, they would have at least remained competitive.
What happened was Intel, they took great decisions like automating the design of their processors and this made them grow at an incredible pace. The Amiga depended on a different processor that stagnated.