Ebay is promoting a ilve auction to occur August 13 - "The Auction at Graceland"

http://www.ebay.com/clt/collectibles-live-events/the-auction-at-graceland-august-13-2015-570144

Among the Las Vegas related items --
A signed Thunderbird napkin
A bill for Elvis & Priscilla's wedding at the Aladdin
A menu from Las Vegas Hilton
Items from Viva Las Vegas movie.

There may be other stuff too. I just scanned quickly.
From Las Vegas' past ... that won't be coming back.
Elvis has left the building.