Originally Posted by tonei

Only if you want to turn a lot of cash into a lot of Orbucks for the sake of making $50 - the reservation doesn't get adjusted to the lower price, you just get a refund in Orbucks for the difference.

"If You have made a valid Best Price Guarantee claim for a hotel booking where the lower hotel rate is found on Orbitz.com, Orbitz will cancel Your original hotel reservation and rebook Your reservation at the lower rate; you will not receive Orbucks for the price difference, only the Orbucks bonus. For all other valid Best Price Guarantee claims, you will receive Orbucks for the price difference plus the bonus Orbucks, which will both be deposited into your Orbitz Rewards account after completion of your hotel stay, car rental, or flight."