Two possible reasons for this are: Royal Caribbean is currently offering balcony cabins for the price of interior cabins on select sailings of the Allure and Oasis ships. If the cost of an interior cabin is the same as a balcony, why even advertise the interiors? The ships have far more balcony cabins than interior ones because of the way they are designed. This leads to the second reason - plain old availability. These ships are very popular, but quite a bit more expensive than other ships with similar itineraries. Given the bad economy those who really want to experience these ships (and they ARE an experience!) are comprising - foregoing oceanview cabins to save money, but still going on the cruise. A travel agent could check this for you more thoroughly, many TA's have group space held which is not available to the general public.