You can also look under the reservations section for your cruise (where you can sign up for beverage packages, shore excursions etc. since specialty restaurants prices and availability are listed there). Finding the freebies isn't difficult and even tho we are only two, I can see how easily a multiplier of 6 racks up the charges.
I will throw in one piece of advice as a T/A.....don't overlook the cost of gratuities. Even parties of 4 can easily forget how they those "recommended amounts" add up and I hate to see anything dampen a cruise!
Whoops, almost forgot my "best value" on the "Allure" was the Italian lunch at "Giovanni's Table" in Central Park. Portions may have been smaller but we both thought it was well worth the $10 cover (per person).