Thanks for this information on what was a well kept secret. I've booked 3 Carnival cruises using TA and calling Carnival and had never heard of this discount. Needless to say we've saved a bundle on the 2 cabins that we booked for next year, but I wish we had known about this on the first 2 cruises. I'll have to book a few more to make up for the discounts we missed.
Azure Seas 1982
Zuiderdam Smooth Jazz Cruise 2006
Zuiderdam Smooth Jazz Cruise 1/20/07
Carnival Conquest 6/10/07