Hubby and I are coming in May with our two adult children. It's our 25th wedding anniversary. When would be the best time to book hotel & flight. Coming from east coast - Philly or Allentown. Also, where do I look for the best deals. When would they become available for that period? Also, how in the world do all you people get comp rooms?? Can't wait to come back. It's been 13 years for hubby and me. Youngest daughter turns 21 in Dec. and can't wait to see Vegas. Son is 23 and loves to "play".