We are trying to figure out who gets invited to the rehearsal dinner. We each have 6 attendants and most of them are traveling over for our wedding and bringing their significant others. I feel like it would be rude of us not to invite the SOs to the rehearsal dinner as I'm not quite sure what they will do while their boyfriend/girlfriend is rehearsing and having dinner with us. Some of them might not know anyone or have never been to Montana and won't have transportation or a way to go do something while we're rehearsing. At the same time inviting the dates of 12 people is going to make for a huge and expensive rehearsal dinner so we're a little worried about that. What do you think? Who are you inviting?