I mean, I wish Commodore was still around, a lot of nostalgia, but what do you expect, when your only differentiation is price, and you do not build a structure around your business that creates customer lock-in in some way, it becomes hard to create sustainable profits and stick around.
With Windows and Intel locking down the enterprise, you really had to create some kind of premium brand like Apple did, not focus on the low end.
The Amiga was hardly a low end computer. I bought a 500 in 1989 and they were wonderful machines. The high end systems could run Unix and were used in commercial video production. You just can't compete with platform effects though, and there wasn't a gap in the market between the Venn diagrams of the PC, Apple and Linux behemoths. In the end not even Sun could make a go of it.