Ah, yes. She did bring them up, didn't she? Yes, this is exactly what she was talking about. I happened to retrieve mine from the vending machine quite some time ago.

[Since he has battery life to spare, he'll go ahead and show Elda the camera function after powering the phone on.]

It's convenient to have a basic camera on a phone. It's one less thing to carry with you, and phones are already useful enough to have on your person at all times. Plus, you can send the photos you take to others via text messages and emails.