Boba Fett is the mysterius background figure-the one man everyone knows, but is too afraid to speak of. This is the basis of his appeal. He has no past. He has no face. He is an enigma who speaks very little, saying even less. One could argue that Fett is Lucas's nod to the Man With No Name.
So why the hell does he have to be a freaking clone? Why? I have a mental block around this and Boba having Temura Morrison's voice.