A cost to the hill work from yesterday is a deep sense of ennui today. Meaning the vague feeling of wanting to do 17 miles today (I was off work- that's how I would have the time) came out to a total of zero miles run.
This isn't a bad thing, though. I want to stay in the 40-50 miles this week. With everything that I have scheduled, if I had run 17 today I'd finish just shy of 70. Which wouldn't be so good, even when they're easy miles.