We have stopped building walls for every battle due to the ridiculous price of bricks in the current market. Just a little info on our experience without them....we ranked the same as we would have we,reached the same level on streaks and still got 50 wins as we always do....so maybe if we all stop buying them ... the sellers will have no choice but to offer them at lower more reasonable prices. Until then we will keep our money in house buying bonuses that actually make a difference.