I would find it interesting to test the binaries I crosscompile. I don't need speed, just the chance of being able to test the binary.

e.g. Imagine you are doing a long travel by train with your laptop and you'd like to do some development, at least this way you could be sure your GUI looks Ok.

Yeah, I know I could try to run UAE but OS3.x lacks some functions and does not run MUI4.