Keeping content current.

Why is it when I look over some of my old video edits, it is always the licensed audio or typography that I feel dates it? Don't get me wrong, looking back at this film short I produced in 2015 there are many things I would want to update, but the soundtrack and how it weaves through the footage would be top of my list. This is why, when I shoot company profiles, I always offer re-edit so the content can remain current.