Hi 20103030Of course when you evaluate a share purchase you should not just look at AISC in isolation. It's much more important and meaningful to consider predicted cashflows over the estimated life of the project. So for example earning a margin of $1000 per ounce on say 50,000 ounces of production is not nearly as valuable as earning $400 per ounce margin on say 1 million ounces of production.