Not quite on the same grand scale but we made an offer on a house In Ocean City NJ before we purchased our current one in Marmora, slightly more inland. We offered $300.000 and it was accepted but we declined for various reasons. The same house resold two years later for over $600,000. It is on the island but not close to the beach, but the mania for buying in Ocean City doubled the price. The house we bought here in Marmora has also appreciated quite a bit, but we are long term and love the house and the location.
Explorer of the Seas October 2013
Caribbean Princess July 2006, May 2010 & November 2012
Monarch of the Seas November 2008
Crown Princess November 2007
Celebrity Zenith November 2005
Enchantment of the Seas August 2004