Sunny Sea Gold details a recent study of "reconsumption," or why people re-watch films or re-read books. One finding:
[P]eople gained insight into themselves and their own growth by going back for a do-over, subconsciously using the rerun or old book as a measuring stick for how their own lives had changed. One woman, for example, rewatched the romantic Kevin Costner movie Message in a Bottle more than once: “It was helping her work through having an engagement that hadn't worked out,” [Cristel Antonia Russell, a marketing professor at American University] says. Every time she watched that movie, it reminded her of her own failed relationship—and her reactions helped her see she was getting over it.