I need help rationalizing the purchase of quoin upgrades at 40,000 iMG. Currently I get 37 iMG per quoin. If I buy an upgrade at 40,000 iMG I will get 38, but I will need to pop about 1000 iMG quoins before it pays for itself (if I've done the math right). So is it really worth buying the quoin upgrades? Thanks for your thoughts on this.