After a decade this glum, we deserved a shot of 'Glee,' a show that restored our faith in the power of song, the beauty of dance, and the magic of 'spirit fingers' to chase our cares and woes into somebody else's backyard.
Here's my theory: I think both fiction and role-playing games involve a narrative journey. When that journey never ends, it feeds an addictive cycle. When that journey has an end, it brings us back to ourselves and to our own lives. This return allows us to reflect. Perhaps this is why I prefer a closed structure for books and games.