Hi, I don't have any menus, but we cruised princess a couple of months back. We paid $40 pp back then, but found that it was worth it then, and the current price is pretty good. As with everything, it comes down to your drinking habits, but if you are going to have a few decent coffees, and 4, or more, spirit / cocktail drinks, or 6, or more, beers then you will come out ahead. then you through in the odd soft drink or fruit juice...........
And then you get the internet, which was actually pretty good cruising the Oz coast. We were able to do all basic email / web type options. We didn't try streaming anything though, but we did make audio calls.
The princess plus package is bottom shelf drinks, but there is a decent range for beers and spirits, the wines are good - but you don't get a great choice.
This was something we reviewed when we looked at the package, hope it helps, enjoy your trip!