Hello- I just booked Caesars Palace for Mar 30, 2009 for 4 nights through Hotwire. I just called and found out I have classic room. Does anyone know if $20 tip will work :) with Caesars Palace? I know it's a huge place, so if I do get an upgrade, which room is a proper upgraded room? Thank you guys. I'm having so much fun using this site as a first timer. :)