Re: Oh how the might have fallen...
"How many on-board MIDI ports does your Amiga have?"
How many Atari owners used theirs?
Besides, it was only about £20-30 for a MIDI adaptor for the Amiga, which is inexpensive compared to the cost of the rest of kit you'll be wanting to hook up to it.
(This is why I don't get too partisan about Mac vs Windows vs Linux, none of them compare to the Amiga in my eyes)