Are they actually asking you to pay the tips with the price of the cruise or are they just making folks aware how much the tips will be so you can plan for it? If it is the latter, I'd be okay with that, but I would not pay the tips prior to sailing.
Mary Lou Scanlon
NCL Pride of America April 24, 2010
NCL Epic February 12, 2011
RCCL Allure of the Seas - September 18, 2011
Celebrity Eclipse - February 11, 2012:
RCCL Navigator OTS - February 9, 2013