Just to be clear, the "vast stores" of water are only theoretical. There are no implications for Moon colonies. You are not going to try to extract water from glass beads. You would need to go through thousands of tons of regolith before extracting a single liter of water, and that's only if you have 100% efficiency, which you will not have.
If we ever decide to have Moon colonies we'll have 3 big problems: we won't be able to source easily carbon, hydrogen and nitrogen. I predict that when we'll have such colonies, the phrase "you're worth your weight in gold" will mean you are useless, since your weight in carbon, hydrogen and nitrogen will exceed many times your weight in gold (which can be sourced locally). Similarly, "you're full of shit" will be a high form of praise, since shit will be thoroughly recycled and highly valuable.
If we ever decide to have Moon colonies we'll have 3 big problems: we won't be able to source easily carbon, hydrogen and nitrogen. I predict that when we'll have such colonies, the phrase "you're worth your weight in gold" will mean you are useless, since your weight in carbon, hydrogen and nitrogen will exceed many times your weight in gold (which can be sourced locally). Similarly, "you're full of shit" will be a high form of praise, since shit will be thoroughly recycled and highly valuable.