Your example of the Champion Ruins is a good illustration of how I used the spreadsheet originally. I would have seen that I was losing coins as each ruin can only hold 5000 coins and you are producing that many in an hour in one of them. I would have bought a third ruin, moved 2 dragons to balance the coins better, and collected a little more each time I checked in. Also, that would leave me 2 slots for the next Champion I won from a Tournament so the possibility of waiting to expand and/or add a habitat becomes a non-issue. I tend to level every dragon up to 4 to get bombs for the mine. The spreadsheet helped point out for some of the special habitats (Mythic, Zodiac, et al) that I needed to level the single dragon up to 7 for a better return on investment. That's not as obvious since I dropped the coin producing column.