DeletedUser99588
With the introduction of the Terracotta Army GB, I feel this is now redundant. People who wish to boost their offensive defense, or defensive attack, can now invest in that building.
With that kind of Logic we would never of had the Pirate ship or other buildings that provide boosts because there is already something that exists to do it. We get given fp's already daily why have buildings or rewards providing more? We have GB's providing defence and attack bonus but still we
have watchfires and other bonus related structures in addition to them.
So, the reason why is because it is an incentive to players that want those things to do their damnedest to get them which can mean spending money, which is ultimately what Innogames require.