Necessity, stupid. From his FAQ:
Your novels sell pretty well. Why do you still work at Time?
That’s a good question. I’ve talked about this before, a couple of times. Bottom line is, I do make a pretty good living from my books. I look at some other writers who are in comparable places in their careers and think, gorram it, they write fiction full time, why don’t I? But I can’t. If I’d made certain decisions earlier in my life, and not made a few others, I could. But as it is I have a lot of overhead. For reasons that don’t bear going into, I have to live in New York, and that’s incredibly expensive. Also a lot of people depend on the money from the Magicians books, not just me. And it’s not like working for Time is a crap job. It’s a great job. It doesn’t pay as much as The Magicians pays, but it pays enough.
reblogging a) for future reference and b) i just love lev. i need to do a reread of the magicians this year and then delve into the magician king before he goes and puts out another book in this awesome ‘verse.