I think people become consumed with selling a book when they need to be consumed with writing it.
I was very influenced by The Magic Mountain. It's a book that had a huge impact on me. I loved that as a shape for a novel: put a bunch of people in a beautiful place, give them all tuberculosis, make them all stay in a fur sleeping bag for several years and see what happens.
People gave me such a bad time about wanting a baby. I didn't want a baby, and I still don't. I wanted a dog.