The quest really burnt a lot of money, and this wasn't all that there was to it.
After a certain fix during the year, the quest item would become tradable. In order to improve their reputation, rich Thieves would spend a great deal of money to purchase these quest items. As for the poor ones, they could only practice their theft skills.
They could earn up to a few dozen grand a week if they just spent three hours to steal these Heavy Bin Boxes.
In Lu Li's previous life, he was around for the event, but he was a Druid back then, so all that he could do was watch. Perhaps, this was part of why he had chosen the Thief class in this life.