Dance floor for sunset beach destination wedding?

We have a Jamaican destination wedding planned in November. The original plan was to include the cheapest basic dancefloor on the beach (through the coordinators) for 1k. We considered adding a stage for 1100 because we have s DJ and a special appearance by my fiance's reggae idol (King Yellowman). Since there will only be 20-22 of us, I decided I could forget the stage to save money. My fiance is all of a sudden worried about cutting back and suggested we dont need a dance floor. I know that my mother and I will be much more comfortable dancing in our dresses on a flat surface but I'm trying to be open-minded for cost reasons. Who out there has had or was a guest at a beach wedding, was there a dancefloor, and how did guests feel about it either way? Need your help to make this decision. Thanks!