So I've had my Kindle (1st gen) for over a year now. It's clearly a first generation device and has some awkward design features and some out and out flaws, but I do find it useful. I have no regrets on the purchase.
In terms of buying books, it's probably a 20%/80% split ebooks to physical books, though that seems to shift when I'm getting ready to travel. It is simply a joy to have a suitcase full of books without the physical demands of a suitcase full of books.
But. . .
As much of a techno-geek-early-adopter as I am, I still vastly prefer the physical experience of reading a physical book. And not only that, I find that some books are so unpleasant to read on the kindle, that I just don't. And in one case, ended up blaming the book rather than the delivery system.
No matter what I might have once thought, there is a difference between content and its delivery system. This may be less of a case for music, though there are audiophiles who insist (and who am I to gainsay them) that they can tell the difference between different codexes of compression, and certainly between analogue and digital.
Here is my example. I downloaded a free sample of the first several chapters of Stieg Larsson's "The Girl with the Dragon Tattoo." I read about 20 pages and deleted the file. I *hated* this story. And I was so disappointed--I really expected to love it. After all, one of my favorite books is "Smilla's Sense of Snow." A difficult read, but compelling. So why did I dislike Dragon Tattoo? At the time I wasn't sure, but my husband purchased a copy at a bookstore when we were on vacation. When he picked it up, I made a face, but he bought it anyway.
Well, I cracked it open and began to read. The passages that I though were ponderous and boring somehow changed into quirky and mysterious. I'm really enjoying this story.
But only in hard copy. The book in my hands.
And I can't really tell you why. Other than book production has been going on for a whole lot of years. Professionals work hard to choose a font and a layout for maximum readability. Also, reading is such a long mastered skill for most of us. It is simple to flip to an earlier page to check something, even without knowing exactly where that passage is. We just have a learned sense of how far back to flip the pages.
You can't do that with a Kindle. You can't see the book as the type designer meant it to be seen. You can't easily leaf back through pages to re-read or check something a chapter back.
In short, it is a *different* experience.
Some books are seamless on the Kindle, others quite difficult to slog through in electronic form.
If I had never held "Dragon Tattoo' in my hands, I would still be talking about how much I disliked this story. What a difference from what I had expected.