a la The City:

I was listening to my ipod in the back of the bus on the way to work. A guy got on with a guitar and came and stood at the back of the bus. He hesitated, even though there were two available seats. He looked at me and said, “You know why a guitar is better than an ipod?” I shook my head and smiled ambivalently. He kept looking at me. I took off my headphones. “I said, you know why a guitar is better than an ipod? Because it’s infinite!”

Maybe he was trying to tell me this.