I'm not so sure that's the case, Nikisha421.
No matter what, you have to pay the site fee and the cost per person no matter what.
My question was, is it cost efficient to ask your guests to use a day's park admission-- Disney just raised this-- of $82 per person on a day when most of the day is going to be spent at a ceremony and reception.
For me, that's a no. I believe it's more cost efficient- and nicer to your guests- to just pay the $13 viewing fee if the DP is on the day of your wedding.
I guess the time of the wedding and reception play into this too- if the reception is over at 2 and the DP is at 9, that's seven hours your guests need to find something to do. Using a park admission makes sense.