LAS VEGAS - JULY 19:  (L-R) Caesars Palace President Gary Selesner, President of Harrah's Entertainment, Inc. Western Division Tom Jenkin and Caesars general manager John Unwin, hold renderings of designs for Caesars during a news conference at the resort July 19, 2007 in Las Vegas, Nevada. Harrah's announced a USD 1 billion expansion at Caesars that will include building a 665-room, 23-story tower to be named the Octavius Tower, and a 263,00-square-foot convention area. Getty Images logo Getty Images 55 months ago

LAS VEGAS - JULY 19: (L-R) Caesars Palace President Gary Selesner, President of Harrah's Entertainment, Inc. Western Division Tom Jenkin and Caesars general manager John Unwin, hold renderings of designs for Caesars during a news conference at the resort July 19, 2007 in Las Vegas, Nevada. Harrah's announced a USD 1 billion expansion at Caesars that will include building a 665-room, 23-story tower to be named the Octavius Tower, and a 263,00-square-foot convention area.