Also the packages like Princess Plus offer a discount compared to separately paying for the gratuities, WiFi package, and drinks package. But if you aren't going to make use of all the benefits, you are probably better off paying for things separately. I did the math on the last 10-night cruise that I took on Princess, and since my husband and I don't drink alcohol, it was far cheaper for us to just pay the gratuities and buy one WiFi package to share, and pay for any drinks individually if we actually wanted one.