The only real way to make money from runway is to shoot for the house. Editorial doesn't ever really pay directly, unless you're an established art photographer or a contracted photojournalist. Editorial is a means to an end. Even the photographers for the big stock agencies are not really making bank unless they shoot everything, and that's really a burnout sort of job, and there are maybe 10-12 of those people in the world each year.
I shot 4 shows this season. Coordinating the coverage teams takes up too much time during fashion week to be away from my desk very much and I only shot 2 of them because we were short on experienced runway photographers. I had 18 people in the field for NYFW, all volunteers, and we really use it as a loss leader because being there in the room for the show sets up ideas for editorials for the rest of the season. You never get the same ideas from just looking on style.com or watching videos on YouTube. I did manage to squeeze in two shows that I really wanted to cover myself. Chado Ralph Rucci, which was amazing. I was dead center on the second runway riser. I still need to edit those shots... article going online soon. Also, Naeem Kahn on the last day, so many sparkles!
I'm missing Milano Moda Donna this season, which sucks, but nobody ever said running a startup company is easy. Did they? I'd like to meet that person.