I always feel a good measure of a wedding's success is what's happening during the last dance. I sometimes refer to this asthe reception finale. If folks are still having a lot of fun, then you have a strong testimony that what's been presented and experienced is still being appreciated and well-received. In other words, a reasonable explanation for why guests choose to stay for the duration of a party is they're involved and enjoying themselves—a sure sign that the wedding is truly a fun celebration.
Quick Video Illustration
Here are portions of the finales from four different weddings. I've embedded this little compilation with good intentions to peek your interest, heighten your perceptions, and influence your thinking in a positive way: