They aren't going to make a lot of money, as they're only providing for themselves, rather than others too. If their crops fail, they're going to have wasted money, and also they have to spend more money on buying food.
advantags are,, ppl will scare if u have the most distructive weapon , they wont simplay just go to war with u >> so that good!!!!
the other hand is ppl will try to invent more distructive...