@ alexH
Of course I discount UAE as it's plain and simply got as much in common with "real" amiga as Amiga Forever has... (ie: sod all) 
The MiniMig while a great product was never for me (took them too long to make it AGA and no AGA then no Amiga), quite simply the specs the NatAmi is offering is what I want & require from an Amiga and all the other reasons I've given before... 
Minimig has *NEVER* had, nor will it ever have AGA, it simply has no room to put it in to the FPGA Bitfile.
I know people have been talking about FPGAReplay, and labeled it "Minimig AGA", but that was more built as a device to run Arcade Roms, it just so happens that because of the FPGA size, they have got a preliminary AGA chipset for the minimig core ported to it. But again, due to the size of the Bitfile, it will NEVER fit in to the FPGA used in the Minimig, not only the size, but the number of I/O lines in the smaller FPGA chip too.