[lycaon17]

The same way opening a treasure chest in a Legend of Zelda game is fun. As for important like tantamount to game play then it's not, but I mean it doesn't take away from the game in anyway, it only adds. For many people it's nice feeling to do something rare or spectacular in a game and hear an awarding chime, for many others it's a good feeling to know you saved All 99 Mudokons and other people know it's true. That's just the truth of the human condition. It's fun to be rewarded even if it's meaningless in reality, it's just cool. More importantly why not have trophies in the game? Unless those extra few MB take away from a Scrab having more animations, or Abe not having the purple stripes on his feather visible,all in all why not have it?