Running with an iPod is a great way to zone out, but it’s not without drawbacks.
That is very true. While I truly enjoy running to music, every couple of weeks I do a run without music. Mainly because I like to focus on myself, my breathing, the sound of my footsteps, etc. Also, as this article points out, many races ban the use of iPod’s, so it’s best not to completely rely on music to pump you up.