I agree that it wouldn't have had anywhere near the impact, however, let's look at how Star Wars absence from that period would have affected filmmaking now. Perhaps it would have taken longer for that type of entertainment to become not only popular but marketable. Without Star Wars, there would be no Raiders, and without Raiders, who knows what we would be missing. Would we have Back to the Future or LOTR or any other sci-fi/epic/fantasy films? Or would we still have those films? Would they be as popular? Would they even have a chance of being made?