if there's coupon left, then the bitmain's S2 will be $1255
I'm pretty sure all of the $400 coupons expired on June 27th
$1450?... I don't know if I'd trust a seller without any feedback yet. I can discount by $110 though now! New price is $1529.99. I also have a bunch of single batch #1 S3s for sale (and 2-packs), but I would recommend buying directly from Bitmain (minimum order of 2) if you have the bitcoin since they're cheaper than I can offer when accounting for Amazon fees.
Yeah, mine expired on the 27th too. Do you offer tech support or have a policy for DOA units?
I do offer support upon request, but I've been fortunate and very few people have needed any. Those who have needed help were mostly unfamiliar with networking. I've only had 1 customer claim to have a DOA unit and I refunded him in full upon returning it to me. I was able to get the unit running right away, so I'm guessing it was another networking issue