I won't stay intentionally for a dollar dance but if they do it before the garter/bouquet I will film it. Pretty easy with 2 cams. One cam for the bride and one for the groom...works great and easy to edit. Usually the dollar dance happens before the garter/bouquet so we will shoot it. You are right less than half do it anymore.
This particular DJ company now calls it the honeymoon dance and encourages guests to give more than one dollar. They even make it into a contest to see who can get more money...the bride or the groom. What a racket. Your guests bring you a gift then you shake them down for more money.
I did a dollar dance way back when we first started that went on about 30-45 minutes and they ended up with a wad of money about inches thick. The brides dad threw in a $100 bill to dance with her. That was pretty cool.
One thing I have seen a few do that I feel is totally ok is they will have a dollar dance and then donate all the money to a charity of choice....that is totally cool in my book. I am an AVID user of Edius.
I am a PREMIERE user of Edius and make my FINAL CUTS X-tra easy in Edius.