We just did a 7 day trip with 2 days in port and went back and forth about this a lot beforehand. Ultimately we decided to not get the package and do pay as we go and it worked in our favor. On a 3-4 day trip we could probably make the drink package work but not for 7 days in a row with 2 in port. I think you need to find a current price list and be honest with yourself about your drinking habits and see if it makes sense. I actually drank less than I thought I would since we were so busy with other activities. I also don't drink specialty coffees and the water filling stations were fine for me.

Also glad we didn't get the soda package because the 12 packs we brought on board were enough.