I just spent about a half an hour explaining this mysterious object to one of my students, a college junior or senior:
They were a completely foreign object to him. He was amazed that they had two sides. He was appalled at the notion of fast-forwarding to get to the next song. Rightfully so. The re-usability seemed to be its only redeeming quality. All in all, they just didn’t seem like a decent way to record or distribute music.
He also refused to believe that a record could sound better than a CD or digital file.  I had to explain the whole analog-digital difference.  He had never held a record in his hands, he had only seen them in movies, and had never realized that they could hold information on both sides. Apparently, you never flip a record over in the movies.
It was one of the most fun conversations I’ve had in a long time.