Running with headphones - yes or no?

Do you run with music?  A while ago I was tooling around on the web and found this post which I read and sort of ignored until I thought about it some more.  Since then I've been doing more and more runs sans music and it's been an interesting experience.  Today was the first day I didn't even bother bringing my headphones along.  Here's what I think:

• I feel much less pressure to keep looking for new music for running.  That playlist doesn't get nearly as old when I only hear it once a week.
• I like that I can hear the sounds of my feet on the pavement.  It's my own rhythm.
• Without music is much closer to how I run in races, since I'm normally with a pace group so it's good to practice that way.
• Such a better plan for running in the dark.
• I run faster up hills.  There's no music to provide a rhythm or pace and I just want this crap over with.
• I like runners who also do not have earbuds because they always smile and say hi as they run by and leave me in the dust.
• I never have any plans to stop listening to music for any workouts at the gym including track workouts, treadmill or the elliptical.  You can pry my iPod from my cold dead hands.

How I've done it so far:
One day I went out for a run and it was going to be dark when I left so I was all "I'll take my earbuds with me and put them in when the sun comes up or at XX point along the course.  Read more here.  I did that for a couple runs here and then for my 20-miler I kept my earbuds out the whole time I was running in the dark without a sidewalk.  More on that foolishness here.  For other runs in Cincinnati, I did one with music because I was totally unmotivated and wouldn't have left the house without the extra incentive.  The other run was totally without music although I had the earbuds with me as a safety net.  Today I just left them at home for my four miler.

Future plans:
I have no idea if I'll keep this up forever, or even go totally music free on some of my longer runs.  20 miles is a long way without some music to distract me.  For now it's nice in the mornings to feel like I have the energy to run without the boost from the earbuds.  I will probably still post what running tunes I'm using now, even if I don't use them as often as before.