I would not advise you to go there.
For someone who is almost Diamond Plus on Royal, I would say this. NCL may be cheaper but then they must know what their cruise is worth.
Besides, I still remember you Wall Mart cruise.
Carnival Liberty New Year's Eve 2007
Liberty of the Seas 5/2008+11/2009
Allure 1/16/ 2011
Booked Vision of the Seas . 2/14/2015
Booked Allure of the Seas... 2/21/16 *Last Gang Cruise*