[Boudica]

I've never understood the point of going to the moon

The current motive to go to the moon is to essentially use it as a "launchpad/refueling" station to facilitate travel elsewhere. For example, to take off with all the resources you would need for a manned flight to Mars, is much more difficult from Earth directly because of the atmosphere and gravity. If you were to store resources and a launch site on the moon, then merely take off from Earth with just the humans on board, you would save a lot of resources and energy making the launch from Earth. You could then hook up to everything you need on the moon, and take off far more easily from there.

Or at least, that's the laymen's terms theory behind wanting to go back to the moon. There are some other reasons quoted, but that appears to be the more commonly cited one.