Of the dozen or so weddings I've been to in my adult life, only 1 did the brides family pay for the wedding, and that was my folks paying for my sister. Just my experience, ymmv. The traditional wedding doesn't exist anymore. Remember when brides used to come with virginity and a dowry?
If you have a broke ass bride, that probably means she has broke ass parents so aside from chipping in for the cake, you're getting nothing. A smart couple is going to save up a couple grand and get married. A dumb couple is going to charge a couple grade to get married.