I have huge issues with earning money... How am I supposed to gather over 1m coins when the yield is so low. I cannot progress further because of this and about the give up with this game at level 36. Selling kerosene, wires and all that expensive stuff also can't bring me near 250k coins.
I have to buy glassworks for 611k, sphinx for 292k, greenhouse for 379k and I guess the costs may increase as the quests get tougher.
Flower cone gives 200 coins per yield are you kidding me!? It should be like 2k coins per click. Supply crates give 500 coins, where am I going to get money if I can't get from the rare stuff. I also saw people saying the collections give a lot of money, actually they don't, say there are 30 collections for 1k and that makes 30k and tell me how am I going to get near 611k if I want the greenhouse?