destination weddings are different in that anything goes. you can be as traditional as you like, or completely different on every item! generally, guest pay for their own rooms. most families choose to have the brides parents pay for the wedding package, which usually includes the wedding and the reception. but i do personally know a lot of brides who along with their fiance, paid for the wedding themselves. i would hope that if the brides parents are footing the cost of the wedding package, that the grooms parents would host an AHR since there is no rehearsal dinner cost, unless you are going off resort for that... there really are a lot of factors involved, i dont think its as cut as dry as "the brides family pays for it all."