AntMiner S3+ Batch 11 opens sale now, price has dropped to 0.535btc per unit, coupon is being issued

Hey Bitmain, price has dropped ? So 0.535 (minus 0.035 per coupon) per unit plus 0.198 for shipping is 0.698 - that is dropped price ?
Last time I paid 0.58 per unit (shipping included) ?!?!?!
Mato