They generally contain multiple people doing fairly memorable things.
I now have more than 100,000 digital images of boring sunsets, jumping dolphins and watches galore! They will all go into the digital trash can someday.
Imagine if I had children or a wife who knew how to operate a camera? I have a friend whose wife averaged a couple dozen photos a day for years. And a co-worker whose daughter was doing 200+ texts a day for a few months, when they were charged $.10 per text (til her dad found out).