Those are batch 1 miners, the ones that should have been shipped by the end of the month. So you're basically paying to get toward the top of the list. Most likely miners that got freed up by giving refunds.
Batch 1 or not, that is quite a ripoff price. For roughly $120 more you'd get a brand new Antminer at 200 GH/s in a few days today.
I'm never pre-ordering anything again. If it's not in hand, say no to the man!
