Editor's Notes & Price Research
This is a gray market seller, but this is the only way you can get this body for this price. Ebay has very good return policy, so it's well worth considering. Detailed review can be seen here.
On the flip-side, Nikon price fixes through authorized retailers. If you don't like Gray Market or Refurbs, you can pay $2k.
I believe $1399 is a new low for the D750 and is a great price for this camera. With the $700 you save by rolling the dice, you could probably get a nice lens or two.
D750 at eBay
Please don't thumbs down for Gray Market, it's very clearly in the title, and i've spelled out the pros/cons.