I have an iPad, a NookColor, a Sylvania 7" mini-tablet, an Acer net book, and a desktop computer. I read on the iPad and the NC. I also read paper publications.
I do NOT believe that ebooks are going to replace paper anytime soon. Paper is too deeply engrained in our culture and civilization. It's been with us for almost 6 thousand years. Paper is part of who we are as a species.
However, ebooks are here to stay and they're going to enlarge and hold their share of the market.
But there are things an ebook cannot do. You cannot convey the striking beauty of a warship as photographed for Jane's All The World's Warships of Whenever via an ebook. You've got to hold that $150 volume in your hand and leaf through its pages.
You cannot enjoy the grand vision of an artist or photographer's art on an ebook. That requires at the very least a massive coffee table book or going to the museum or show to fully appreciate. At the most you might get a peak at the artist or the photographer's vision via an ebook, but there's no way you'll get the full effect.
Paper books and ebooks will ve around for a long, long time together and will, and should, compliment each other.
What ebooks offer is another venue for writers to publish their work. It is not, and should not be, their first and only choice (in fact, for many, it should not be a choice at all, but that's only because they definitely are not ready, do not have the "chops", and do not have any idea that writing is not, generally, a path to riches).
Too damned many people think that they're going to get rich writing their first book (all of, gee, 3 thousand words because, hey, they call it a book, right?) and have no plan for what they want to do in the future, or any future at all. They have the one book or story they want to publish and that's it, that's all they'll ever do - and they expect immediate riches for it.
It doesn't work that way.
Nevertheless, print and ebooks are going to ve around for a long time to come and they will compliment, not supplant, each other.