There certainly are. It comes down to how you want to pursue your career.

I also get the point you're making with your list, but know that most of those aren't exclusive to 9-5 jobs, or don't hold true in some cases. Two points in particular:

- I wasn't able to cite work from my first year as a full time freelancer in my portfolio. The company I was contracting with at the time didn't allow it. However, I was able to include the side projects I had completed when I was a full time employee.

- Some consulting or freelance gigs have a 100% on-site requirement. A full time job I passed on last year was 100% telecommute.