On the flipside, a powerPC mac can be a PC by running linux 
Or Windows NT

If it doesn't have a Paula chip on the motherboard it is nothing more than an AmigaOS compatible as far as I am concerned, and if it doesn't even run an AmigaOS it is even less worthy of my attention.
I don't do anything other than run OCS/ECS/AGA period applications/games anyway and in these cases AOS 3.5-4.2 or MorphOS has no advantage for me than running WinUAE and my ADFs on my super cheap readily available ludicrously powerful X86-64 machines anyway.