It may be that we can mine the moon for hydrogen and oxygen. And to make it even more interesting is that it appears it is a renewable source. The sun creates the water on the moon:
The moon’s top layer of crushed rock and soil may hold far more water than previously estimated, according to a new study.
Most of that water can trace its origin to protons streaming from the sun, the researchers show, confirming in samples of lunar soil a mechanism for making lunar water that until now largely had been the province of theoretical models.
Getting water could be useful. Getting rocket fuel would be awesome!
The moon has an abundance of solar energy to break the water and/or hydroxyl down into H + O which is a great rocket fuel. The moon could be more than just a staging area for exploring and/or mining the asteroids and/or other planets. It could be a source of supplies.
The next question I want answered, “Is there a plentiful source of nitrogen and carbon available?” These are needed for an earth like atmosphere and as plant nutrients.
If N and C (and a bunch of other nutrients in smaller quantities) are readily available then crops can be grown for food. Once we have wheat farms on the moon we are snuggling distance from The Moon Is a Harsh Mistress.