soda has not been included for some years now. The card only gets you soda fountain drinks not cans of soda. things like milk, ice tea, coffee, reg tea, punch etc is included .
Coffee shop coffees are usually extra and many ships now have some restaurants that are extra charge but the dining room and buffet never are.
Also I assume you know tips are added to your account at the rate of $10 pp per day. plus there is a 15% gratuity on the drinks that you do pay for.