Rehearsal and Dinner

Is there any particular reason she doesn't want the rehearsal dinner the night before the wedding? I've been told the main reason behind having the dinner so close to the wedding date is so that people won't forget what it is they have to do during the ceremony.

So Susan G:
Tell us all about your wedding, when did you get married, where, what color were your bridesmaids dresses! Since you have never posted here before and all of the sudden have the urge to tell us how great your video company is why don't you tell us everything.