Sometimes it is a real pain not knowing how much services will be on board a cruise ship. So hopefully you will find this price list from Royal Caribbean’s Radiance of the Seas taken on board a Transpacific cruise from Sydney to Hawaii in April 2017.
I can’t guarantee these prices will be the same even on the next cruise but it gives you a good idea of what to expect for their services. Some things aren’t too bad and some are a bit expensive.