Have a $400 bitmain coupon for anyone considering a z9 purchase. https://bitcointalk.org/index.php?topic=3300918.0
I am debating whether to spring for one myself. It would make it a lot easier if bitmain let you know how many they will be producing for batch 1.
No coupons for Z9. PM me price for the coupon though, I might want to use it for something else.