i would imagine the prices would be about the same on all the carnival ships. we were on the tropical in feb. 2000 and i was pregnant so i had plenty of the virgin drinks and they were very good, the only down fall was they were the same price as my husband's which had alcohol. they averaged around $4 (w/out the take-home glass).
I was on the Pride on January 12th. On Wednesday, in St. Maarten, I came down with Bronchitis and ended up in the Infirmary. The ship's doctor put me on an antibiotic and said "no alcohol". From that point on, I started drinking the virgin Pina Coladas and virgin Strawberry Daquiries (sp?). I do believe the price was about the same as the mixed drinks with alcohol. But I will say that even without the alcohol, the drinks still tasted soooooooooooo very good!!