Eren woke up from his peaceful slumber and found out that he had received 1742 more Menaka's Runes.
Menaka's Market was always open and people could buy and sell the items available in the market at any time, at any place. Unless there were some special circumstances, people could buy stuff from Menaka's Market even while they were in transit or doing something really crucial.
Eren had never experienced an economy that was always on, always churning. He couldn't blame the goddess for being capitalist anymore after he got his cut from the system.
After being included in the profit margin, the butcher couldn't complain about a system that worked for him. He was sure that he would have turned the Mesh into a profit-generating machine as well if he had given the reins over it.