Two Years to Write a Novel? WTF!

In my submission to ITW's The Big Thrill for my upcoming thriller, Chase Baker and the Quest for the Holy Grail, they posed this question: "A novel is such a major undertaking; there’s the writing of it, of course, then you’re spending months and months revising, polishing, and then promoting it. How did you know this was the book you wanted to spend the next couple of years on?" Are they kidding? In two years I can write 24 novels!!!!