Players who pre-order at GameStop (online or in-store) will unlock and take part in The Historic Battle of Kawagoe. Set in 1545, the Battle of Kawagoe saw the Hojo clan launch a successful night time counter-attack against the besieging Uesugi, eschewing heavy armor and the collection of heads in favor of speed and stealth.
Those who pre-order at Best Buy (in-store only) will unlock 1,000 Koku, the currency used in Total War: SHOGUN 2. Player's campaigns will begin with 1,000 Koku, allowing them to purchase new buildings, train new units and upgrade their towns.
An extra battle sounds nice, but the money bonus sounds like a game-spoiler to me as it'll make the early campaign easier. What do you think? Share your thoughts on the forums.