In order to bring older loot items like spice crates and marauder chests back to decent value, what if Outposts had an "Inventory" mechanic. After a certain period of time, an Outposts goods will slowly drain, and they will request the lowest amount of stock between 2-4X value depending on if it is between half empty and completely empty.
Smugglers could also have Outpost heist mechanics too to raid the Outpost stock and steal the highest stocked loot item x5. Stolen loot could be turned in to a specific smuggler for X3.5 value
Disclaimer: This wouldn't decrease the price of the loot items, and this only refers to older loot items. Expensive items, World Event specific loot, and kingly loot are not included.
