I think that is on a ship to ship basis. On Regatta recently they actually told us we she could use my leftover for her. Strictly for us, and I'm not promoting this, but if they wanted to adjust any of the Loyalty perks I'd be ok with this one going away. Most of the time, since they brought it back, we haven't used it. It went down from $260 per person to $150 per person, meanwhile there was a huge price increase on the services. As already mentioned the gratuities have to come out of your other OBC or your pocket, and products no longer can be purchased with the perk.
To the OP, I actually have a price list from about a year ago, but it's almost too faint to read. I can't post it, but if you want to know any specific procedure's price I'd be happy to get a magnifying glass out and read it.