It was a great "catch all" place for cards and small gifts and at the end of the night it could be easily closed up and put in the car. We got married at an Industrial Museum, so the metal mailbox fit in perfectly in the space.
Although...we didn't just buy the mailbox for the wedding... We now use it at our house!
We bought our first house a few months before the wedding and the mailbox we inherited was in poor shape. After the wedding, we put our "card holder" to good use. I love that it was part of our special day and now serves a purpose in our everyday life.