I know I've heard that cigaretts are cheaper on the ship and in some of the ports, but what about smokeless tobacco (skoal). We'll be on the Holiday--in Cozumel & Playa Del Carmen.
My husband bought some skoal onboard and doesn't remember it being much cheaper than it was in the states. But....there's no tax so that makes it cheaper a little anyhow. Word of warning.....watch where you spit.....those winds on deck can be strong ;-) Have a great cruise!