Last night I was trying to compare options for a family stay in Madrid this summer, and I had to spend quite a bit of time clicking through every property all the way to the very end to see my actual cost, to compare to a points stay.

For a 3 night stay, every night was different at just about every property. The "price" listed on the search page was the first night only for an advance/prepay/nonrefundable stay only, and without the substantial taxes. I.e., relatively useless.