I did the math on the Celebrity drink package a couple of years ago and it didn't work out for us. If you must have a couple of froufrou coffees every day and may consume five or six adult beverages it might work out for you.
A Bad Day At Sea [with power] Always Beats A Good Day At Work
Carnival: Glory 2004, Destiny 2008, Splendor 2009, Freedom 2011, Valor 2012, Dream 2013
Celebrity: Summit 2011
Princess: Ruby 2010, 2014, Caribbean 2013, Coral 2014