Moon resources, including water, oxygen, iron, and titanium are abundant on the moon. NASA’s Artemis and Lunar Gateway project intend a permanent return to the moon, in part to extract useful moon resources for further solar system exploration and the settlement of Mars. Launch to orbit is a necessary part of this effort. The moon is uniquely suited to electromagnetic launch with its solar energy, ever present vacuum, low temperature and reduced need for high escape velocity to reach orbit.
The prize of truly low-cost access to space is so great, the research and engineering effort is well worth it.