I have mixed feelings about such quests: Until you build up enough of the boosted good(s), it is good to have at least one of each of the other. Why? Because some of these non-boosted goods are required for both building/upgrading some of our buildings, and also for negotiating on the map. Also, in the market, I see some ridiculous unfair trades, so trading is not always an option. The quests should be optional, but I think that they should remain, for those who want or need them.
I thought I had enough steel for building/trading/negotiating, so I tore down my level 3 marbles and planks; I regret to say that I had to rebuild two of each, because the demand for those items keeps coming! I have just entered the second tier, and I do not have the room for building my next boost, which is Scrolls, so until I gain two more provinces to get more land, I cannot start production of the new Good. The only way I can gain these provinces is by negotiating, because the armies in the sectors are too unfair, and I am nowhere on the tech tree where I can recruit a more-fairly balanced military. I only have the dancers and archers, which pretty much get wiped out per sector, and it takes many hours of recruiting in order to get enough to even consider a new fight. The amounts of goods required to "purchase" these sectors is laughable, and very unfair.
