Like Adam and Dory, I lean towards archiving unless it absolutely makes sense to delete it (junk, testing, etc.). I think Adam & Dory covered it well but one more tip... when archiving programs, I'll try to add something into the name of the program such as "(ARCHIVE)". I do this because RCA reporting, at this time, doesn't recognize archives so everything still comes up as searchable. I can filter out programs that start with that, if needed.