I'd pay a bit to run it on a cheap ARM platform, I'm sure plenty of others would too, if only for the curiosity value. Obviously the higher the cost, the lower the curiosity.
I do know that I will never buy a modern PPC Amiga, so the current state of play is no sale of AmigaOS4.
People have been crying for AmigaOS on ARM for over a decade though, it falls on deaf ears.