HazyDAVE...
My comment about military spec came from a young lady I know who is a project manager on the Hubble Space telescope. She told me that one of the Computers in the thing is a 1990's 486... not a chip from another supplier with equivalent CPU power... it's a 486..they had to go through so much engineering BS to get it approved and fabbed for aerospace use. It's built to withstand the rigors of liftoff and whatever else happens up there.
Reagardless of all that am I crazy to believe that a FAST Amiga legacy compatible machine can be made using FPGA technology and come in under $300?

I mean go to deal extreme and you see Super Nintendo, and Sega Genesis TV game units for like $30 bucks. Those consoles were more or less Amiga 500 like tech...
I think 99% of us here would pay $200-$250 for a NATAMI like device with an expansion bus for a faster CPU a la the A1200, or Walker styled motherboard design.
AS for the potential high price.... This is happening because you can bet Acube and Hyperion watch CVPPC cards go for $800 or more on EBAY and wonder well... if they're willing to pay that much for a 10 year old CPU card they can pay up to 2X that for a new system.