All cost-averaging is foolish. Imagine taking all the items on your menu, finding the average price of a meal, and charging that price for each item? It'll all average out, right? $5 lobster platter anyone? How about that $5 side of ketchup? Which will you order? Cost-averaging logic indicates that we can shoot a few bullets into large crowds and it's not a crime. In fact, nobody will really be dead. Why? Because, using cost-averaging, everyone in the crowd **including and especially all the corpses** will still be 99% alive after. Just think, if you can afford enough post-secondary indoctrination, this might actually seem sensible to you too.