I hear you on that one. I'm on the fence. I would've upgraded to Premium + but I'm the only drinker in my family. To be honest, I used to survive on just the wine I brought on. We get two rooms so 4 bottles (and a stray martini or 2 during the week) did the trick or me. At least for San Juan, the selection at the port is not that great. We are flying in the day of the cruise so having the package will be less stressful for me. Have a great cruise!
My cruise, Summit from San Juan on 12/21 has the same deal. I've never done a drink package before so very excited. At full price it wasn't worth it for me, but couldn't resist at half off for premium. Now I don't even need to bring wine on board. Woohoo!