jenia1 is selling preorders for 3800, he seems alright, and he does escrow. That might seem like a lot right now, but bitmain just doubled the s9 price from 1650 to 2795 per unit. The units reselling now from 3-7k on ebay were purchased at the old price of 1650. That means if the market stays the way it is, s9s can be expected to go up in the resale market. Of course, you never know what the market is going to do. Good luck!