I think it's important to have things like Amiga OS 4.x, MorphOS & AROS around in todays world because you never know where the next great developer or company will come from. They usually come from smaller tech savvy platforms like this. If there was never an Amiga 1000 would there have been a DiscreetFX or a NewTek? If the Amiga did not stun the world in 1985 with concepts like multitasking, more colors, animation, stereo sound, hardware assisted accelerated graphics and more would computers be a good as they are today?
Probably not.
The original Amiga set the stage that we have today and made all computers better. Let Amiga OS 4.x, MorphOS & AROS thrive and maybe they will give us a better tomorrow.