We are getting married in Hawaii next year, it was going to be just the two of us but now it looks like MIL and her hubby plan to come as well. They will also be bringing our two kids- they were going to watch them for us. She insists on us going through a travel agent.. but we aren't staying at a hotel (renting a cottage through airbnb) and also will not be doing any guided tours.
Would it really save us on just airfare??