So, you're in the middle of heavy fire and right when you have your enemy in your cross-hair, your computer lags and you die. Sound familiar? It's not just FPS games that benefit from SSDs, it's every game. There's a lot of League of Legends fans out there. With an SSD you don't have to wait too long to get into a game. You can play on the highest settings and enjoy the beautiful visuals as well as have maximum performance for your awesome plays.
Play your games the way the developers intended it. At max settings with max performance. You're not a real gamer until you get an SSD.