This is labeled as a grey market item with a 1-year seller warranty. At the time of this post, ebay seller BigValueInc has a positive feedback rating of 99.2%.
B&H has the Pentax K-3 with a $100 instant rebate now. That brings the K-3 body only down to $996.95 and includes a free Pentax BG-5 battery grip and Pentax 16GB SDHC card. Check it out here at B&H Photo.
The Pentax K-3 kit with 18-135mm lens is $1346.95 and also includes a Pentax BG-5 battery grip. Check it out here at B&H Photo.
Both deals include free expedited shipping and 4% rewards.