Serious question: Why do so many of my fellow Christians seem to see Dungeons and Dragons as evil?

Back in the 80's there was a flair up it over it all. 60 Minutes even covered it, there was a movie called "Mazes and Monsters" that basically attacked the game (indirectly).

Had a pastor, when I was a teen, take my D&D books and burn them (we were all camping, brought my books and dice and such). Said they were of the devil and such. My dad, a Baptist, tolerated me playing with friends in the basement but wouldn't let us LARP (live action role playing).

I just don't get the hate for a game that helps you use your mind, math, etc, all to have fun.