I just wasted an extra 1650 gold because I accidentally clicked reveal all armies twice. The game happily spent my gold but that is not what I intended. I realize the game is designed and intended that players buy extra gold, but it would go along way if the game shared the players view that gold is a valuable resource and makes that extra effort to help them ensure they are not squandering it.
I'd be more apt to buy gold if I felt the game wasn't set up to help facilitate throwing your money away.
Thanks,