Duty free booze is cheaper than in the USA. What you do is check the prices onboard and then when you go ashore check the prices there. Occasionally the ship prices aZre the same of even cheaper but much of the time you can get very good deals ashore. You can also get the 'good stuff' and brands that are not available in the USA.
Just adding my $0.02 worth here, not just related to Cozumel. We have just returned from Martinique and since my spouse loves to cook and is naturally great at it, we usually buy spices and recipe books from the islands we visit. We were disapointed to say the least, to find that all of the vanilla we bought in Fort de France was a watered down replacement. So word to the wise is, before buying those cute little spice baskets or just buying vanilla extract, ask to test the vanilla in the bottles. If the salesperson refuses to let you try it before buying, well............
Spirit Jan 18th,
Sovereign of the Seas12-97
Punta Langosta was the dock in Cozumel. The dock you are going to is further out. While in CZM we bought some wine to take to dinner. It turned out to be sweet so we gave it to our head waiter. He sure enjoyed it. It was probable mass wine: called Sangre de Cristo. No we did not buy any liquor in port. But usually, when we go to Mexico, we buy products made there, such as Rompope, a sweet egg yolk drink, Damiana, Grendain (quince liquor forgot the name), Xtabentun (a local maya licorice liquor) or Kahlua. On the ship, this time I bought Sheridan's coffee brandy and a single malt Johnnie Walker that was about $12.00 cheaper than Specs.
I guess you could say that in this lifetime, I am determined to try everything (legal that is) that I can get my hands on at least once. That's what makes it all fun.