but compare the ore costs in the Rampart and, say, in the Stronghold....
In the Stronghold, to upgrade a building to level 7, you need: 5 for a Goblin Barracks, 5 for a Wolf Den, 10 for a Roc Nest, 2*10 for an upgraded building level 7. Total: 40 ore, and if you consider that the first two buildings are often already built, then it
