I'm with those who say there's nothing evil about a type of CPU. Well, unless Intel are assassinating pet kittens and using the corpses for their cores but I don't think so

To me it seems senseless, especially in the current economic climate, to pick a minority platform that costs 4x as much for the same power (or less). There are a lot of hardcore Amiga fans on here, yet only an even more hardcore subset would bother paying that kind of money to play with what is basically an experimental OS.
AROS was never taken seriously among the "true" Amiga developers, it's just quite recently it has gotten to the point where it is even mentioned in the types of discussions like this one. And why has it taken so long? Because the said "true" Amiga developers have not really been interested in participating.
It suffered from chicken-and-egg syndrome I think. Nobody was interested in getting involved because it was taking so long (15 years!) to get into a state that can be considered "interesting" (reasonably usable). It didn't seem like it was getting anywhere, and therefore difficult to take seriously. Yet it probably took so long because nobody was interested in getting involved.
Now that it's in an interesting state, that's probably why it's being taken a bit more seriously as an option.