What's harder, running or not running?

I did some hard running over the weekend and a long elliptical session on Monday, so I decided to take a rest day today. I usually run or work out every day of the week before a race (except on the day before) while reducing distance and effort for the taper. Today I needed to rest. Yesterday's marathon session at the doctor took a lot out of me and my body told me to forgo my run this morning.

Since I didn't run I'm feeling energetic, but I know I made the right decision. I feel prepared for the hilly challenge this Saturday and I don't think one day off will make any difference to my conditioning at this point. It's sometimes hard to get moving on my runs each morning but it's often harder not to run at all.