It's kinda cool that the SuperFX chip was designed by an Amiga guy (he made Starglider and Starglider 2 on the Amiga, kinda similar to Starfox don't you think?).
There are surely games out there that use OCS/ECS and require more than 1MB ChipRAM, some needing several megs of FastRAM too, although I can't list them off the top of my head. I like it when a game can take advantage of my expanded system though.
Hired guns will use more than 1MB chip RAM, if available for extra sounds.