I've put a poll over in the right-hand column, titled 'What is your favourite book medium?' I'm interested to know how people are sourcing and consuming books at the moment, because I've heard a lot about how many people are putatively turning to eBooks, and I'd like to have a go at confirming or denying that for myself. (I work with scientists, OK?)
I'll be honest here, and give you my answer:
While I'll always love physical books, and always want to collect the books most special to me, I like reading on my Kindle. It is light, portable, and convenient (unlike some books I could name *coughTowersofMidnightcough*); the books are cheaper and so it is less of a risk to try new authors; and I can change the font size at will.
Please vote in the poll to let me know your favourite way (now, in 2012) of acquiring and reading books.