We stayed at the Hyatt the night before our cruise last February and loved it! It was so convenient! Unfortunately, for our cruise this February, we ran into the same problem that you all are having. The cheapest rate I can find is $164 with the AAA discount. Last year, I booked through Travelocity and got a rate of $112. Travelocity isn't offering that great rate (yet!).
I ended up taking a chance on Hotwire. I booked a 3 1/2 star room that didn't have a shuttle symbol. I got the Crowne Plaza for $72 (including taxes). I was a little disappointed in not getting the Hyatt, but for the money we are saving, I can live with taking a shuttle to the hotel.
I hope the rates drop for all you Hyatt fans! Good luck!
Gayl