RE:What drives me crazy is the AISC figure used by companiesAISC is a joke. It is a completely worthless number. If you want to know the true cost of mining, take the compay's profits and divide by the number of ounces produced. That will give you the profit per ounce. Then take the average cost of gold for the period and subtract the profit per ounce. That will give you the true cost of mining gold will all the overhead included.