Should I build a website for the launch of my book?

In the past I advised authors to buy the domain name of the title of their book so they could build a website for the launch and for book resources. As an alternative to the domain name, authors could always buy some variation of the title plus “book” as many other authors have done.

One reason for this is that when you are interviewed about your book or giving a talk about the book, you can give a simple and memorable domain name for it. People can go there to learn more about the book, get...