Answer:
War tactics at the time were centered a lot around deception, so it wasn't uncommon to expect the unexpected.
The correct answer should be reward. In order to reward buyers for buying, you put the prices lower even though in reality you could be making the same mount of money. You thus decide to earn less money but you reward your buyers for being loyal or you get them to buy.
Historians consider the moving of the League Treasury to Athens to be the moment of transformation of the delian league into the Athenian empire.
