I've never been able to get into the idea of reading "books" on a computer screen, or a phone, tablet, or e-reader. This is partly because I don't like reading on a screen, and partly because I like the look and feel of a well-made hardcover book.
On the other hand, there are a number of sites out there from which one can download older, public-domain texts for free, and some of those texts are out of print and impossible to find as actual books, so the ebooks are the best option if you want to read them at all.Now, for a quick reference, a downloaded PDF or text file is just fine, and occasionally even preferable if you want to be able to do keyword searches. But for reading a book straight through, I much prefer a physical copy, so when it's a book I plan to read cover-to-cover, and I'm pretty sure I'll want to keep it in my collection, I'll sometimes print it out and bind it myself.
