This was my thinking too, either give a bonus to GP regen while in base camp (there's a bit of lore that says that the water on the moon that we fish in was 'purified' by the crystal, so that shiny rock is apparently very multi-purpose)
Or, add an item that can only be used in Cosmic Exploration (maybe bought with Cosmocredits). Give us a 'Dehydrated, Vacuum-Packed CosmoCordial. Make it restore our GP to full, and it has no CD, but to balance it, it has a 10s cast time (making it very good to use between missions, but not so great when you're in a mission and the clock's ticking)