Edition: 1st: 12/6/05, Purchase of 200 from Random House at 60% discount, comes to $3.60 each, Total: $719 2nd: 10/1/06, Random House, 200 copies, Unit cost: $3.60, Total: $719.20 3rd: 18/1/06/06, Random House, 200 copies, Unit cost: $3.60, Total: $719.20 4th