There are lots of books out there. The reader has to decide quickly which one she is going to spend her time and money on. She's not going to buy something just because it might get good later on. Unless you have won a major prize or had a film made from your book, chances are your reader has never heard of you. She’s going to read a page or two and decide. If it’s on Amazon, she’s going to click “Look Inside” and read a few pages. Yep, "your reader" will do just that, being an analphabet in for mind-numbing pulp. "My reader" takes time to choose a book by its literary merits, not by its gaudy cover and advertising blurbs. And most likely from a public library on the recommendation of a friend. Preferably after reading the plot synopsis.