I love ebooks! My ereader doesn't glare and is very like reading a paper book, so no eye strain. Even less eye strain because I can enlarge the font and spacing.
My mum loves ebooks. She has arthritis and finds it hard to manipulate paper books.
I get lots of ebooks from the public libraries - this means they are free to me but the authors still get paid their royalties, which doesn't happen when you buy second hand books.
My ereader goes everywhere with me, fits nicely in my pocket and is especially handy when I go on holiday.
As a book lover I consider ebooks to be just as valid as paper editions - the author gets paid exactly the same, which I consider to be very important. There is also the environmental issues to consider - no trees have been used to make paper, no diesel used to transport the books and no vast storage facilities. No pulping of unsold books.
I wish there were ebooks when I was college and university - the amount of text books I had to carry was back breaking, and the reams and reams of photocopying was time consuming and expensive.
Hurrah for the ebook!