When their website works. I checked a couple days ago and their price was over $1000.
I still can't figure out why someone would pay $800+ for an S7 on eBay when you can get a brand new one from Bitmain for less. When I ordered mine, it took less than a week to arrive here in the U.S. No problems with customs, etc. Very smooth and easy. You could probably do pretty well buying a bunch from Bitmain and turning them around on eBay.