cads what does datamine have to do with it if anything id of expected the price to rise with the masses of info now available from data mine. basically on a time basis it takes 2100 maximum decayed code to farm this at an average of 80 per hour. therefore taking 26 hours give or take.. I even sold one on rec last month for 2.5 bil which goes to show what some people are willing to pay due to the tediousness of farming the headgear.
In 26 hours you can farm about 900 mil minimum in datamine hence the price should be closer to that or more, given the need to use a second account to farm 80 decayed code in an hour.