True, but this not dedicated hardware is better supported by MorphOS, than dedicated hardware is supported by AmigaOS 4.
...and cheaper by a magnitude, it's also faster, more easy to obtain, and it comes in flavors ranging from big-box PowerMacs, tiny footprint and compact Mac Minis, and full-blown laptops as PowerBooks. The OS has more features, better features, better stability, better Amiga compatibility, and better performance, etc. It has the best Amiga standards (MUI4, CGX, Poseidon, etc) not only bundled, but *integrated*, and Ambient leaves both Workbench and Wanderer far, far behind. IMHO, it's a non-brainer, but of course, taste is different...