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MSC Cruises has announced an eye-catching new promotion, which offers complimentary stateroom upgrades on select 7-night Caribbean and European sailings. Pay for the lowest-cost interior cabins with this great-value “Move Up in the World” deal, and be bumped up to balcony cabins at no extra cost. What’s more, the offer can be redeemed for peak-season sailings, so there's no need to sail during iffy-weather shoulder seasons in order to snag the freebie upgrade. Or, splurge for a full-price balcony suite, and be upgraded to the top-of-the-line butler suites in the line's elite cruise line-within-a cruise line, the MSC Yacht Club, found on Fantasia-class ships.

The interior-to-balcony cabin upgrades are valid on all Fantasia- and Musica-class ships, while a lesser interior-to-oceanview upgrade can be redeemed on Lirica-class vessels as well, as as aboard the MSC Opera. Book a 7-night Caribbean cruise on from $629/person, or a 7-night European sailing from $669/person. The deal is valid on select sailings through March 2013, and expires on March 31, 2012. Visit www.msccruisesusa.com to book.