I booked HDDR a year ago, and couldn't apply the discount until they knew for sure it was going to be offered in '06. So, paid in full at time of booking. Then, last month I called back to see if I could get my DDE discount applied..yep, the credit was there on my debit card that week. It came to a discount of about $10 pp...the tickets were in the $50 range..I believe that the Luau is pretty similarly priced. But, it is only for the late show.