So right now, on earth the cost of neutrality is only $25 regardless of town size. I love having neutrality and the concept of it. However, I don't think the cost right now is reasonable. What I am suggesting, is to link upkeep and neutrality cost. So, if the cost is $1,000 for the upkeep the neutrality will be $1,000 as well (Total upkeep = Total neutrality cost). To put this in perspective a town the size of Angelwood would pay $96,400 in upkeep and $96,400. It wouldn't really affect towns that much but would make people actually think about whether they want to be peaceful or not.