[vladmihalcea]

> I’d say money should not be the main motivation to do it

It depends on how you approach this investment. For me, a book is like any other product I make. It takes a certain amount of resources to produce and launch it, and it should generate at least as much revenue as I would have made if I had chosen to do consulting instead.

However, selling products can scale better than consulting. So, over time, you could end up making more money from a certain product (e.g., book, video course) than if you were employed or doing consulting.