I was just looking at balcony cabins on Norwegian Cruise Line, for 7 nights in Hawaii, 2014 versus 2015. Depending on the date, balcony rates starting at $ 600 - $1200 more PER PERSON.
Check it out for yourself !
In 2014, balcony rates as low as $ 1499 pp. March 15, 22 & 29. Nov 29. Other dates starting from $ 1559. The lowest in 2015 is $2000+ !
Check it out yourself. See both years. Go to www.VivianWebb.com. Choose only this: Hawaii, Norwegian, Pride of America, then search. Do "not" choose date. Then on next page, you will see all the dates, choose "select". The next page will show you both years !