Go to the spa on the first day and get a tour, get the price list they offer you for the services...then be very patient. During the week, especially on port days, they will offer at one point or another every service on that sheet for about half the price. A facial that cost $149 on Sunday, will be discounted to about $79 by Thursday. Are they worth it, well I had a facial and it lasted about 35 minutes with 10 of those minutes spent just relaxing under a mask, 20 minutes actually getting the facial and the 5 additional minutes getting a consultation and product pitch.
Are they worth it....ummm, its up to you, but for a few dollars more in Las Vegas, I can get a full hour facial and no sales pitch. Even at $79 I was a bit disappointed.