"Is it worth it" is always the interesting question. You might - MIGHT - save a few dollars. But another way to rephrase this question is "Is it worth the few dollars I might save to do the shopping myself, repack the bottles for transport, lug it all around, and have it in my room instead of wherever I happen to be when I want a drink, plus miss the opportunity to sample local drinks I've never had or local variations of drinks I like?" My answer is obvious. To me, if you're doing extra work to save $50 on a $1500 or more vacation, it's clearly not worth it. YMMV, or as my Dad would put it, "to each his own."