Just returned from a five day Celebrity Cruise with Elevate package for $70 a day. That includes premium drinks, WIFI (normally $10 a day), gratuities (you would have to pay anyhow at the end of the cruse $15 a day), and $100 cruise credit. So, the drinks part of the package is $25 a day.
Princess Cruises Princess Plus Package in $50 a day. That includes premium drinks, WIFI (normally $10 a day), and gratuities (you would have to pay anyhow at the end of the cruse $15 a day). So, the drinks part of the package is $25 a day.
I don't know why RCL doesn't have something similar.