"Free" High tier premium tanks

iScending: I think the notion that this is a "free" tank is rather off. Do you pay gold for it? No, but you have to invest a tremendous amount of time and effort to get it. Time is money, remember that ;). 75000 XP per nation is a tall order and (in theory) when you finish the last nation you've earned a fair amount of gameplay experience to go with your new tank.