I haven't looked into the moon too much, but if I recall correctly it has a much less diverse selection of resources than Mars does. That said, I don't think i

I haven't looked into the moon too much, but if I recall correctly it has a much less diverse selection of resources than Mars does. That said, I don't think it's an either or situation. Industry on either body will inevitably be just about 100% robotic, so at the point where we're harvesting a given resource from Mars it very well may make sense to also get it on Luna. In particular, metal deposits from large asteroid strikes are probably worthwhile. I'd love to see some literature on fuel production (pref methalox for ITS) on the moon. I have no idea whether there's sufficient resources, but if there are that could certainly be useful.