Real reason Blizz doesnt want AH in HC is to stop gold buying. You see a grey item in AH for tens of thousands of gold? Thats a gold sale. No gold buying in HC. Has nothing to do with not getting legit items from there.Also some services even will sell gear for real life cash and out it on the AH, they tell the person exactly when they will post it and put an epic worth thousands for only a few gold, then the buyer gets it the second it is posted. Blizz wants to stop any outside influence as much as possible in HC servers so they are doing this.