Why buy Spy instead of S&P 500?

Why would an investor choose to purchase Spy rather than investing in the S&P 500? Could Spy potentially offer higher returns than the broader market index? Is Spy's performance historically more consistent or volatile compared to the S&P 500? What are the specific advantages of Spy that might outweigh the benefits of investing in the S&P 500? Also, what are the risks associated with Spy that investors should be aware of before making a decision? Is Spy's management team and structure more favorable than the S&P 500's? Finally, does Spy have any unique features or characteristics that might make it a more attractive investment choice?