We just booked the exact same cruise (dates, category, kids, OBB discount) for $6908.28 Costco travel told me that the price didn't include gratuities. But the price I saw for the same trip online through
DCL directly would have been exactly the difference of tips for 4 people: $336. Maybe just a coincidence and I did my math wrong, or maybe she didn't know what she was talking about which I have found is sometimes the case with Costco Travel agents. Took 2 hours and 3 minutes total between holding to talk to an agent originally and then the agent holding for DCL. The good news is we booked our dummy cruise the day they changed the 18 month rebook policy and they still honored it for this one which is technically 19 months later.