bottled water in cabin - Serenade OTS

[carol louise]

I just noticed that I can order a beverage package to be delivered to the cabin for my upcoming cruise. Am interested in the 8 bottles of water for a price that comes out to about $3.56 per bottle (plus 15% gratuity). Can anyone who has sailed recently tell me what the price is if you buy it a bottle at a time during the cruise? That's how I have always bought water for the cabin on other lines and wonder if there is any advantage to the package besides the convenience.

Thanks for your help.