I absolutely agree with this. It's one reason why I love to browse libraries and bookshops, even big-box ones. I browse multiple sections and can just about always find something new that seems interesting that I wouldn't have found earlier. It's also part of what I miss about having access to a quality university library. The amount of high quality non-fiction, across a wide range of subjects, was just astounding and I used to spend hours there just browsing and skimming through books.