The thing with the cloaking device . . . . . . I know that a clocking device is mentioned in one of the original trilogy movies - I think it's ESB ..... so the technology would have definitely been present. Just because Lucas chose not to SHOW it, doesn't mean that it wasn't around or couldn't be used. He probably didn't use it because "cloaking" was so prevalent in the Star Trek series and movies. Anyway ..... I didn't think that the cloaking technology took away from anything. In fact, it was a refreshing and original idea.