Those points don't seem
that high priority to me... if the ACA500 is too expensive there is the Gotek option which, while not quite as nice as a hard drive setup, is perfectly usable and very cheap. And two buttons is fine for a lot of stuff
We don't see a lot of advanced Amiga games releases these days simply because that is a difficult goal to achieve. It requires extraordinary skill and commitment to make a game which could surpass the top games from back in the day. Much more so than with the 8-bit systems.