If you by any chance wanted to play a game on the Amiga, you could use a computer joystick. It wasn’t always necessary to have, but with some games, it added a bit of realism to it.
In one of my Amiga boxes, I’ve found three different computer joysticks. I have to admit that I haven’t tried any one of them, so I don’t know how good they are, but they do appear to be in three different qualities.