* for checking if game has been launched before or is the first time.
* can be used for creating an achievement system by saving x autosave number for x achievement & it is global meaning the achievement would always show up in menu no matter what save the player loaded from; having said that, it's not exactly the most secure way of going about it.
* could be used for creating a custom save menu instead of using the vs save system.
* used to create the new game option
* etc - just use your imagination