They made a lot of changes to the Orcs, so everything might change, and it seems that skeletons also cost 10 gold according to the new prices. Archdevil costs 3666 and has 2, while Black Dragon costs 3700 and has 2! But in most cases, the price seems to be accurate, but you're right, not always!

Where did you get all this information? After all, the demo only had creatures from Haven, Inferno, and Stronghold. And if you look at the table with the alternate upgrade for Necropolis, the price of a skeleton warrior is 30, while the price of a goblin shaman and a goblin trapper is 20, and they are more useful: the trapper sets a trap, and the shaman casts a spell against the opponent, and they also have a cart with goblins, and considering their growth rate, you can soon organize tournaments in goblin gathering.