For me it's 100% the commute. I like my office, and have zero problems with open plans or noise (my office is quiet, but I don't mind noise). What I despise is driving. My commute is not very long (< 30 minutes), but every moment of driving sucks the life out of me. I will never understand people who like cars and/or driving.

My office is in the city, and unfortunately living within walking distance is not really an option. Plus, if I ever change job the odds of being nearby the new job are not that high anyway.