Hey, i think the TH is the most important construction of CoC, and i don't think the TH can only be upgraded with gold, i think that must be 50% of actual valor on each resource, per example:
TH 7 to TH 8 is 2.000.000 gold, i think that must be 1.000.000 gold and 1.000.000 elixir, because elixir and gold must be used together to improve the village, and we need both two to upgrade TH.
