What Will We Do With The Moon?

Colonization of the moon has been proposed recently by countries such as France, Russia, Japan, and the United States.

But what will we use the moon for? What is its ultimate role in serving the people of the earth? A safe hiding place in case earth should become uninhabitable?

My initial impulse was to believe it will eventually be used as a dumping ground for getting rid of things we don't really want on earth:

Garbage dumpRadioactive waste dumpCemeteryJail

I no longer see any of these in th...