War used to be so expensive. Back in the day, you had your horses and your swords, each of which were worth upwards of twenty gold coins. Then, you had your thousand-dollar artillery shells and landmines. Finally, countries decided they just couldn't get by without dropping a couple million bones on stealth bombers. It's hard to believe how cheap things are these now in comparison. For instance, if you were to log onto the Humble Bundle website sometime in the next twelve days, you could basically buy the entirety of World War 2 for ten bucks.