I personally do not like AI's, it great that food and drinks are all included and what not.. but when im on vacation i barely eat..sooo it just wouldn't be worth it to me.. i eat 1 1/2 meals on a good day when i'm on vacation...the only thing id benefit from is the drinks part....

also, i like to spread the wealth... if i have $500 to spend i'd rather spend it at 10 places than give all of my money to an AI that is owned by some already wealthy European guy..