We like the ease of it, BUT
We only get it when it is a good value--NCL More at Sea ($30/day plus dining tips) & Princess Plus ($60/day for drinks, wifi & gratuities) are a good value for us, MSC drink package is generally reasonable purchased pre-cruise as well. Celebrity can vary.
Carnival & RCCL package prices don't make sense, even as much as DH enjoys his drinks!
Virgin doesn't even offer drink packages. Buying a bar tab worked fine.
I bring 2 bottles of wine on those cruises & look for opportunities for free drinks--VV has quite a few. I'm Elite on Celebrity & Princess & Diamond on RCCL.
Princess is not a great value as DH doesn't drink free in the daily cocktail hour.
Celebrity lets me order 2 drinks at a time, so that works--but we have snagged some good rates with drinks & wifi so have only used that once.
RCCL will get me 4 free drinks/day plus 2 at half price & 20% off the rest. So no need for a severely overpriced package.
We understand this isn't a need for everyone.
As we move to full-time travel, and cruising is a part of that (particularly transatlantics & transpacifics), it won't be vacation, but instead our day to day life...we may find less need for it.