I would like to start by saying that I do enjoy the game and that trader quests are my main source of activity on this game.
That Being said I must admit these large building become rather boring rather quickly. The main reason for this is because most traders only have 1-3 types near there location. If you happen to know exactly how many tier 5 buildings there are plz let me know. It is also unreasonable to simply ask that you pile more of these giant buildings into the cities for the sake of these quests. So What I am suggesting is to also introduce chain quests to the mix. Just some examples would be:
*I need you to grab the supplies we have been gathering from 3 different locations, each of them being a tier 2 building.
*I need you to find out what happened to this person, which could entail as much as 4 tier 1 and a dig up quest.
*It's time to start taking back this land, that involves clearing a pair of tier 4's
Those are just ones I could come up at the time. but I feel adding these chain quests would add a lot more variety while also making it so you as the Fun Pimps do not need to just make a bunch more giant buildings/quests.
I would love to hear feed back on this idea and with enough support we might start a fire .