Is one ready to be an author?

There’s always in the back of the mind of a writer of shorter material the time when he’ll be an author and gets the book contract. But does one really want to do that? The book signings, the author meet and greets, the interviews…the general busyness over your book? And does one really like reading books anyhow, the longer stuff that is? Can a writer be satisfied with the niche he already has and make the most of it, as much as possible? And not put all his eggs in the writing basket?