Max. hotel price would be $50 per person per night with two people per room. Other than that, airfare and entertainment costs. Since it is Vegas, you know I will be hitting Delmonico's and the seafood buffet at the Rio, which you should recall had plenty of choices for non-seafood eaters, but neither place was cheap ($30-$40?). Oh, and Bryan and I found this awesome Japanese restaurant last time we were there. As for activities and entertainment, who knows?