yea 144000USD for a 30k mini rig doesnt quite seem a bit crazy to you? I cant verifiy but I belive the unit costs 30k. BFL site seems to allow you to go to any page but the product price pages.
You cannot order the same hashing rate without costing more than 75k usd and you have to stay at the bottom of the waiting list. (Which means you order 30 * 50GH/s right now, and you still have to consider the shipping cost), so 144k is a very reasonable price as this order was made more than 3 month ago, and the exchange rate of the bitcoin is much lower at that time.