This is true, I think its good to find a balance between living life and making sure you at least take some good memories.

I have had a number of times I just don't remember a moment, only for a friend to show an old photo they happened to see again and a flood of good memories come back.

I thought your phrasing of "take some good memories" = photographs was kinda interesting, given the topic (:

As always, relevant xkcd: https://xkcd.com/1314/

(though I do find myself in the "don't worry about documenting it" camp more often than not. The nagging background thought of "don't forget to take a picture" tends to bring me out of the moment, sometimes)