What we told friends about our experience with Alcohol on our 7 day Fantasy cruise:
1) We bought a litre (Canadian

of rum for me at duty free - opened it at WDW and used it there for our 3 days pre-cruise, then we were able to close the bottle and bring the rest on board with us - so civilized!
2) I would put some rum in a mickey mug (thanks wdw magic your way plan!) before heading up on deck, fill it at the pop machine and have a great time. Usually did that two or three times per day.
3) We bought the
DCL beer mug for my wife, it was great, and also she tried most of the drinks of the day as they were reasonably priced and we didn't feel we were being ripped off.
4) Two other members of our extended family bought wine packages for dinner and we all shared - great time!
5) At the end of the cruise we felt like we had really enjoy ourselves, spent money on alcohol to be sure but miraculously didn't feel ripped off on an $8,000 trip AND didn't feel "nickel and dimed" as my parents did on a RC transatlantic.
Now my fear would be that not only will carry on spirits be put into the "vault" with VHS copies of The Little Mermaid forever, but the previously reasonable prices for drinks on board will start to creep upwards. I believe scientifically this is known as the "movie theatre phenomenon" or "We're the only legal food vendor within 10 miles (16 kilometres) - so yes our hot dogs are $9."
P.S. : The other thing we told friends, for what it's worth in our one 7 day experience, never saw a soul who appeared even mildly inebriated. Maybe Goofy - but he kinda stumbles all the time.