Do you think that people who have "redo" weddings should have the prewedding festivities?

I am very much against "redo" weddings. I feel that people get one shot at their wedding, whether it be at a courthouse, or in front of 500 people at the Waldorf Astoria. However, many disagree with me. For those who think it is ok to have a second wedding, do you think that they should have prewedding parties like bachelor parties? Why not? If they are doing a 'redo," shouldn't they go all the way and do it right? In for a penny. in for a pound...