MiniMig is smaller than an A500 so can be more easily fitted in to your house.
MiniMig uses disk images on SD card, so no need for stacks of floppies.
MiniMig can be built in to any case you want.
MiniMig supports VGA monitors directly without the need for expensive scandoublers.
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Isn't it part of the charm of that old hardware that they do things the way they do? And especially look the way they do?
Otherwise, shouldn't you just use UAE, if these things count for you?
I think i get the idea of being able to dodge the use of those old expensive scandoublers, but i am really not sure if i am convinced about the rest.
I like the idea of new Amigas getting built though... :-)