This is probably a gray market lens or it was part of a kit that the seller broke up to sell separately at a discounted price. At the time of this post, ebay seller AllNewShop has a 99.7% positive rating on ebay.
B&H has the Elinchrom BRX 500 2-light kit for $709.90 (reg. $1414.50) in limited quantity. The kit includes two 26″ softboxes, a Skyport hot shoe radio transmitter and a carry bag.
B&H has the Sekonic LiteMaster Pro L-478DR light meter and X-Rite ColorChecker Passport with Sekonic Gray Balance Card for $369 (reg. $499) as its Deal Zone deal for today only. Check it out while it lasts here at B&H Photo.
Note: This is labeled as a gray market item and, therefore, won’t include a US warranty card. At the time of this post, ebay seller GetItDigital has a positive feedback rating of 99.6% and offers its own 1-year warranty with the camera.