I really love this thread. I am planning a large destination wedding in the Dominican Republic at the Dreams La Romana resort. We sent out save the dates to approximately 175 people and even more invites, so no one can say they weren't invited. Currently, the guest list is at 139, so with the people who have spouses we are at around 300 guests. We are hoping that only 100 people will show, including the wedding party (17). I too have 8 bridesmaids and 7 groomsmen. I also have divorced parents with a step-family that I am inviting as well. The problem, both of our families are large. I foresee that a lot of our guests will attempt to book through other means or complain about the price of the trip, but we gave everyone a year to plan for this. We let them know about the DW as soon as we decided to have one and we have already sent out the STDs.
It was my plan to send out the invitations aruund Dec and have the cut off by Feb 14th but I think I need to send them sooner because the rates of the hotel now are only good if they book before January 7th.