Zimmerberg

I know this is probably a loaded question but I wanted other opinions on this topic. My girlfriend and I are going on Wonder in August for 7 nights with 2 sea days, 3 in port, and 1 in coco cay. I am trying to see if it is worth it to buy the drinking package right now with the cost being $81 per person/day or $567 per person total. I am not the biggest drinker in the world, as opposed to my girlfriend lol, but we've been on Harmony last year and we bought the drinking package then because we had more sea days and I understand how easy it is keep the drinks coming as time flies by sailing away. Any input or recommendations would be greatly appreciated! Thank you!!