I think marid2012's wording is good. Let people know the rate of the resort, all that it offers, as well as the price of a day pass if they choose to stay elsewhere. We chose an all-inclusive for several reasons. Yes, there are probably cheaper resorts on the island. However, when you factor in all the meals are covered, it becomes an inexpensive vacation, it just might not seem like it at first. We only invited immediate family and didn't really tell many people except for immediate family of the plans. We thought it inappropriate to ask others to spend so much to attend our wedding.