a recent megaprojects video claimed harvesting water from asteroids was more worth the time and money than to do the same for rare earth metals.

apparently bringing tons of rare earth metals back to earth would only lower their price and therefore not make the trip worth the money, but i guess this isn't a problem for the water that those asteroid might hold as that would still be not only valuable but worth the expense of harvesting it from asteroids.

if the moon is closer, and not only less complicated to harvest from but has the advantage that you can keep a permanent drilling rig set up without needing to re-land on a complicated surface every single time, that would seem better than harvesting water from asteroids to me