LORELAI: Plus, we got the whole mother/daughter gimmick going for us. The crowd’ll eat that up.
It’s a dance marathon based on nothing but stamina. They don’t actually need a gimmick to win. Perhaps Lorelai thinks that if the crowd is supporting them, they’ll be more likely to last until the end, although she may be saying anything to get Rory to agree.
The Annotated Gilmore Girls 