I don't think Djay mixed the two. But if you did, Djay, it could be because the majority of people who play Amiga games use WinUAE, WinFellow,Amiga De, AIAB, Cloanto or Amithalon. Alll are emulators. Face it, man.
But, there is a difference. People write software for the actual machines and not emulators, I'd suspect.
I could be wrong.