As the title says the fetch quests do not expire. What this means is that later in a game when there are 3 items locked out as contraband plus another 2-3 items locked out due to fetch quests there isn't much to choose from when trying to trade with a merchant.
It doesn't help to do the fetch quests because as soon as one is done another one starts. This forces one to only haul cargo for merchants instead of trading for meself.
It doesn't help to do the fetch quests because as soon as one is done another one starts. This forces one to only haul cargo for merchants instead of trading for meself.