Used bookstores

Thoughts from Library Girl and Miriam's Ideas
This thought from the latter really rings true:

I order most used books over the Internet these days, but something is missing. The serendipity, for one thing. I have discovered some of my favorite books by taking a chance on a volume by an unknown (to me) author. I've also found old chestnuts on the shelves which gave me a thrill of recognition.

The internet has made book buying more convenient and lets us choose from a tremendous selection of books. But that convenience has destroyed the thrill of the hunt.