Javier Marías, listing about the many reasons not to write a novel:
What’s more, it can take months or even years of work to write an average-length novel that some people then might want to read. Investing all that time in a task that has only a one per cent chance of making any money is absurd, especially bearing in mind that these days no one – not even aristocrats and housewives – has that amount of time to spare. The Marquis de Sade and Jane Austen did, but their modern-day equivalents do not; and worse still, not even the aristocrats and housewives who don’t write but do read have time enough to read what their writing colleagues write.
Subconsciously, maybe this is why I’m only writing short stories at the moment?