He says bookstores are becoming obsolete and doesn't see himself visiting another one anytime soon, at least not for his own needs. It's tempting to do all your book shopping online but I worry about the serendipity factor and the loss of product discoverability.
When I go to an online bookstore it's generally with a purpose in mind. My typical Amazon visit is for a destination purchase, not browsing. That, or I'm doing some research on the site. Impulse buys rarely happen for me online. Comparing the online experience to the brick-and-mortar one, I find the latter to be a mix of destination purchases and impulse buys.
It's so much easier to get lost in the shelves at your local brick-and-mortar. When was the last time that happened to you on Amazon, for example? Has it ever happened to you on Amazon?!