I don't get it. What's so great about AmigaOS? Amigas are certainly the best retro computers, hands down, and they're just awesome, but the OS? I just don't see what's so great about it.
That's really not the point.
The OP isn't asking whether a 30-year-old operating system is segment-leading or if it's a viable replacement for other options.
The question is whether or not you would pay to have the ability to run the OS on another architecture. The "why" is immaterial.