Literary Letters, Lost in Cyberspace:
A writer's papers would be “considerably” more valuable if they included e-mail, [literary agent Andrew] Wylie said. The question for an acquiring agency or library is how to prevent “extrapolated diminishment of value,” he added. “I could certainly see Dave Eggers's collected e-mail correspondence appearing in 10 volumes in the course of the next 40 years, and I think it would be absolutely riveting,” Wylie said of another client.”
I was trying to imagine just how incredibly boring this would be, but then TMFTML did it for me.