Some ancient treasure from Pathfinder might not feel appropriate in a Starfinder campaign, especially magic armor, shields, weapons, and alchemical consumables. Treating these treasures as antique gear rather than converting them to the Starfinder-grade equivalents introduces a new type of precious treasure that can be sold to collectors. The infosphere makes finding such collectors a relatively simple task, unless the item is prohibited for sale for some reason. But be careful, selling valuable rare items might put the PCs in the crosshairs of thieves or predatory investors! PCs might appreciate being able to sell lower-level ancient consumables to collectors, but make sure to adjust other story rewards if you're allowing players to effectively sell this gear at full price. Some PCs might feel uncomfortable selling artifacts to private collections and might demand they belong in a museum, or with the culture that crafted them, for there are rewards more valuable than credits.