A gin and tonic is around $6.50 and watch the prices certain gins cost more than others so be specific after you have check the list, same for all spirits. You can but wine which is Ok in the diningroom in the range $25/35. We usually but a bottle and use it over two nights they cork it and bring it back the following evening. The prices quoted include the 15% service charge and on the whole measures are larger, but you won't find the prices you pay in your local.
No, there is no drinks package on Celebrity for 'all you can drink alcohol'. Celebrity's soft-drink program has been established for all guests onboard to obtain soda drinks at a daily rate of $5.00 plus 15% gratuity.