Check around 6-15-2015 on this forum, it was discussed then. The last auction any of us could find was a couple years back. This is what the auction house posted:

1994. Two Deluxe High Value VIP Gambling Tokens, issued at the Grand Opening of the Luxor Hotel. Gem Uncirculated. In capsules in a blue velvet case, the tokens are in $25 and $100 values. Both in silver, the lesser token with the beauteous Nefertiti. The $100 piece features King Tut's golden mask. This naturally highlighted in 24 kt. gold plate, with proof-like fields. Made for special VIP presentation during the Luxor's grand opening festivities, this is one of twelve sets issued. The set pristine. Lot of 2 coins.
Estimated Value $400 - 500. Sold for $242

It was never made clear to me whether there were 12 different sets of tokens issued at grand opening, or if there were only 12 sets of these two tokens issued. But, based on the selling price, I'm guessing the were 12 different sets of multiple tokens issued.