Many in the US may not be familiar with how the Macau junkets work, but it is a huge driver of revenues there. From the LVRJ:
A decision to change where some of Macau’s top junket operators bring their big-spending customers could be troublesome for Las Vegas Sands Corp. and Wynn Resorts Ltd.
Ten Macau gambling representatives signed a new agreement this month to take their high rollers to the Crown Macau, which opened in May. The casino is operated by Melco PBL, a joint venture between Australian tycoon James Packer and Hong Kong businessman Lawrence Ho, son of Macau casino pioneer Stanley Ho.
The $565 million Crown Macau is on Taipa Island, between the main casino cluster on the Macau Peninsula and the growing gaming operations on the Cotai Strip.
LVRJ article
http://www.lvrj.com/business/12923922.html