Moved, obviously has nothing to do with beta thread.
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Answer is never. (Was it really serious question?)
Any user re-programmable (as in logic itself can be changed = it has a FPGA, microcontroller etc) board is out of the question or is more or less a computer on a board. It is not worth it at all.
Just use uaegfx or uanet.device or bsdsocket etc.
Old boards are interesting relics of days long gone
IMHO thats the real point of emulating (old enough) hardware. And at least most of them have some unique software.