Interesting, I've actually found the exact opposite to be true. If you self-publish and do the work of building a platform and marketing enough to show that you

Interesting, I've actually found the exact opposite to be true. If you self-publish and do the work of building a platform and marketing enough to show that you have to ability to move books in a real way, not only will publishers be more interested in your next one, they'll more interested in picking up the one you've self-published.