The argument we always used to use was that keeping records in the catalog was good for people that were coming new to the music, but I think that was talking over a ten year or fifteen year time span.
The fragrance of flowers spreads only in the direction of the wind. But the goodness of a person spreads in all directions.
Keeping a journal implies hope.
Photography records the gamut of feelings written on the human face, the beauty of the earth and skies that man has inherited, and the wealth and confusion man has created. It is a major force in explaining man to man.