I noticed that the price for our date had increased another $100 pp this week so when I called to book a pre-night, I asked how many had booked so far, expecting the count to have increased, but it was still the same as when I made my reservation 2 weeks ago. I also booked our air and the price they quoted for our Delta flight was about $50 less pp than booking directly with Delta. In the past the price has always been the same as what I found on my own. They told me they have an arrangement. I'm glad I didn't book it myself.