OK, sure, they'll probably fire it up and create a black hole or something that swallows the earth (Yes, I did fall asleep the other night watching some of the Sci-Fi Channel's original movie programming. Why do you ask?). But it's still cool. For one, it's a really big machine. For another, it involves subatomic particles that have neat names like "charmed quark" and "gluon." And best of all, it involves smashing stuff into other stuff at speeds that are an appreciable fraction of the speed of light.
How could you not like that?