I asked this question on the RCCL forum and now I would like to ask the same question of the Carnival Liberty. Have the slot machines on Carnival Liberty started using paper vouchers or are they still using coins??
Carnival Liberty New Year's Eve 2007
Liberty of the Seas 5/2008+11/2009
Allure 1/16/ 2011
Independence of the Seas 12/29/2013
Booked Allure of the Seas....12/27/2015