Do you ever ask a bookstore staffer for recommendations?
I've always preferred to just browse for myself, and maybe read the first few pages. Either I feel like reading it, or I don't. I don't trust someone else to predict which way I'll go.
However, writers of articles like this invariably mention the "knowledgeable staff." I was in a Tucson bookstore near the University and I tried an experiment: I asked for a fiction recommendation. She asked me what books I liked, we talked for a long time, and she came up with "The Orphan Master's Son."
OK, it's a good book, I'm not going to trash it at all. But I just didn't feel like finishing it.
Maybe if I went there all the time and bought a lot of books and they actually got to know me, it would be different.