Interesting fine-point argument, but when you bid through Priceline, by their own terms and conditions, you are not guaranteed a bed type. I'll bet if you reread Marriott you will find a booking channel reference proviso. Let the bed type go or the rest of your complaint will be laughed off. If bed type or other variable is an absolute, then book conventionally. Priceline can be great and first-half 2009 in New York it was, but its not worth it unless there is a large price difference.