More eyeballs for your your emails at no extra cost (again)
Same with sequence emails, now you can resend broadcast emails to those people who haven't opened your emails in a certain period of time.
E.g. Resend this email with a new subject line if contacts have not opened in 5 days.
This only takes a click of the mouse to set up -- 15 seconds!
For 15 seconds of work to get more exposure for your emails, why not!