Carnival drink package question

[Kendricktwins]

7 day cruise coming up, and I'm so on the fence with the Cheers package. I know the days at sea will be worth it, but we have 4 ports and won't be drinking during the day, but I'm a wine drinker at night. Prob 3-4 easy at dinner and my husband drinks crown. If we have 3-4 drinks a night do you think the package would be worth it? I saw that a glass of wine could be $7-13. Keeping in mind the waters and vitamin water would come in handy too. Any thought are welcome! 

[Essiesmom]

Welcome to Cruise Critic.  I think you will get more exact answers if you ask on the Carnival forum here, under Cruise Lines A-O.  I think someone may have a spreadsheet to calculate the value to you.  We are having a little difficulty accessing the cruise line forums here tonight, but it should resolve...EM

[Just_Beachy22]

hopefully this helps if you can see the replies!