I have to admit I’d love to go to a wedding with realistic vows. I’d imagine something like, “I promise to love and cherish you until such time as it becomes inconvenient or I get tired of you or whatever”.
A bit more brutal one that happens quite a lot in more traditional countries: "I really want my relatives to leave me alone about marrying and having kids so here, I am marrying you as a ticket to another life that I'll abandon once I am reassured I won't be deprived of inheritance".