I think that, until you are gigging live, many of the Korg Songbook's features seem somewhat marginal. You gigging these days, Bill?

Organization by SONG on the stage is what makes it so easy to use. Registrations usually have a different display structure, and generally a larger filesize requirement. The Korg Songbook is without doubt the best laid out and organized songbook feature on any arranger today...

If you use one.