But I'm assuming that there would be some need of rocket fuel on the lunar surface and in Lunar orbit. If rocket fuel is something which is needed then a determining factor is it's replacement value- the cost of shipping it from Earth.
And there is scientific and commerical interest regarding the Moon.
Not only the Moon but the rest of the Universe, and IF there is minable quantities of Lunar ice then the Moon (in the near term) can be Earth's major spaceport. If there is no minable lunar ice, then the Moon will still be a Earth's spaceport but it might be in some distant uncertain future.
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It is not enough to "assume" commercial & scientific interest in the moon. The "interest" has to be willing to pay the actual costs. It clearly is not. And that's why, 30 years after Apollo 17, we're not on the moon. What could possibly be clearer????

-philw