Years ago, a famous group of musicians took a very different approach than many musicians take today. They not only allowed their fans to tape their concerts, they encouraged it by setting up an area near the stage to give them optimal recordings. They also encouraged their fans to create t-shirts and other merchandise and sell them in the parking lot of their concerts. They became one of the richest bands in the world, and the Grateful Dead are worth millions of dollars.
Maybe an author can't be quite a generous, but for myself, I am more likely to buy an author's books after I've sampled their writing through a library, second hand bookstore, or a paperback on sale. If I really like them, I will probably start buying their books in hardcover to keep.