The only reason to want AmigaOS is being an Amiga fan. There's no sane reason for Amiga fans to buy anything but an Amiga for their purposes because the Milan is slower than most of the modern speeders on Amiga.
The only reason to want a Milan is being an Atari fan. There's no sane reason for Atari fans to use anything but MiNT, MagiC or TOS for their purposes because those are the only OS'es that'll run their apps.
I know it's hard for people like you and Mike Bouma to accept, but contrary to what you think, the Amiga isn't going to save the world, and neither will the Amiga-world ever grow again. Same goes for the Atari. Use the platform and it's clones as long as they fulfill your demands, but don't so ignorant to believe that it'll rise again. It won't.