Aside of the books I actually buy like books on Religion, Myth, Conspiracy History and the like, I get all my stuff from IRC, I.E. the Star Wars Novels and Comics I read.
For Comics you can view them on Nintendo DS via an R4i card and the free comic book reader. The same goes for Ebooks.
Otherwise if you don't want to spend much you can get a classic iPaq for around $10 off ebay, and use the free app called: Haali Reader for all your Ebook reading needs.
Either way you got book marks and all those other fancy features that those over priced devices are offering now a days, except through IRC you don't have to pay for everything, only what you can truly afford and wish to support...
...not at all unlike going to the library.
The one thing I like about digital books is that if you drop your book, you don't loose your page, plus you can read in the dark.
The down side is that I fear they are trying to rid the world of printed word, which can be a scary thing if you think about it, considering that people are already up to the act of mythologizing the past, I.E. through our School Text books. Imagine if there was not historical hard print to compare our bogus history lessons with? We'd all be lost and un-informed.
