I think Kris's overall point, that the business is changing and trying to find its way, is valid. But I don't think print is dying, nor are brick-and-mortar bookstores. The one of which I'm a co-owner, Mysterious Galaxy in San Diego, is soon to be Mysterious Galaxy in San Diego and Redondo Beach--we're opening a second branch, after 19 years in business.
Now, it's no superstore. It's a specialty store that sells mystery, sf, fantasy, horror, and a few related items (some graphic novels, lots of kids/YA in those genres, associated nonfiction). We also have various outreaches, business-to-business, a brisk trade selling at certain conventions, etc. The sorts of things a successful independent bookstore does to stay that way.
And we don't look down on people who do what Kris claimed not to do: "I’m not one of those obnoxious people who stands in the aisle of a brick-and-mortar store and downloads the book on my Kindle or iPhone app. I’m not that crass."
In fact, we post QR codes on the shelves. If we can sell an e-book, and it's something you'd rather read in digital than print, you can scan it with your smart phone and order it on the spot. From us.
The world is definitely changing. But movies didn't end pleasure reading. TV didn't end theatrical movies. Video games didn't end any of the previous three. The rise of digital will give authors more, different outlets for telling stories, but it won't end storytelling. And the printed book is still a nearly ideal marriage of form and function--you can read it anywhere, you don't need power, you can put it down and pick it up at any time and it's still right there. The author can sign it for you, actually touching the book that you possess--a big plus for collectors, and still a great way to cement a fan's appreciation. E will take a bigger and bigger bite of the pie, but print won't die. Not in my lifetime, and probably not in yours.
And the smart booksellers will keep their stores open, and keep making money by putting readers together with the books they'll love.