I couldn't agree with Ms. Sansevieri more. Writers who write because they believe they will reach sales of Potter proportions are in for a world of disappointment unless they have the dream team of marketing on their side. If you write, you need to do it for the sheer love of it and not because you think you're going to retire on the bundles of money your manuscript is going to bring in. For every J.K., there's 1,000 authors you've never heard of and of whom cannot quit their day jobs. Any success is is just icing on the cake.