And that's just it. I cant do adventure flights all the time unless I have enough fuel stacked up, and launches can get pricy as you already know. I make roughly about 100k a day total, but a huge portion of that is from my coin buildings. I agree that eventually you should put them away, but only after you've purchased all the upgrades and buildings that you need. Theyre also super reliable. All the others you either need the support or enough fuelIt’s not that I’m against coin producers but rather that I can do bettter without them. Once you start adventure flying and land becomes a premium something has to go. For me, it was the coin buildings.
For the amount of time I put into the game between completing collections, fight income and launch income I generate over 1.5M coins per week. There are advanced players that do much more than that.