Does anyone who says "let's keep dating" at the altar end up married?

There's a lot of "it's too early let's keep dating" on this show, which given that you're pressured to make a major life decision after 1 month on a TV-network's production schedule, is a completely rational thing to say. On the other hand, has that ever worked out for a couple? Maybe the basic premise about falling in love sight-unseen etc etc is actually the least interesting part of the show. Maybe it just doesn't take that long to figure out if you want to be with someone or not.