hi guys, first time poster i was going to use Hotwire and/or Priceline for my upcoming vegas trip, but since i haven't decided the date, i will not post my result yet i have used $20 trick before i knew this trick exist. i'm an out going person and i know good things will happen when you make front desk personnel happy. i was chatting away with a from desk clerk at New York New York and he upgraded me to ziggurat suite (which is not on their website), i was overwhelmed and i tipped him. the 2nd night i was at THE hotel and i did the same thing, asked for upgrade then tip and i was able to get the penthouse at 60th floor. Later when i came back from Vegas then i found out this tip trick however, i have one question right now tho when is the best time to check in for this trick to work at the best? upgrades are based on availablily of the rooms, so there could be a good time to check in with high success rate? please help, thanx