http://www.costco.com/Browse/Product...=1&topnav=&s=1
-No expiration or blackout dates
-Maximum 20 cards can be utilized towards a hotel, show, restaurant, air-hotel package offered on Vegas.com
-Must be booked online at VEGAS.com or through the contact center by calling 1-800-851-1703
-Free Shipping
They've been running out and restocking these things like crazy.