I really have to confess that I am always bit skeptical when hotels are running bonus points promotions and all the rates are not eligible. In this case you have to book a special 7500 Priority Club bonus points rate. Comparing rates have been complicate as well when choosing this promotion. You can only check the Best Available Rate without opening another browser.
For demonstration purposes I chose one hotel in each of the five promoted cities and chose a two night stay from 18th to 20th this month. I wrote down the special 7500 Priority Club bonus points rate, the best available rate, advance purchase rate if available, and the AAA rate. In all cases the bonus points rate was the highest.
My conclusion? I rather take the savings and book either the advance purchase rate or AAA rate if available. These bonus points are rather expensive and not worth it.