Not buying eBooks from suppliers that infest them with DRM doesn't mean not buying eBooks. I love my Kobo reader with all my heart and it has massively increased my consumption of fiction. Just don't support and buy eBooks from suppliers that use DRM.

Baen Books is my favorite for science fiction. (www.baenebooks.com) O'Reilly Media for technical books. (http://shop.oreilly.com/category/ebooks.do) Calibre eBook store. (http://drmfree.calibre-ebook.com/) Project Gutenberg for the classics. (http://www.gutenberg.org/)

There are quite a few more, but I don't want to link them because I haven't personally used them. I'm also hoping DRM-Free eBook bundles catch on (https://www.humblebundle.com/).

If there are books that I "desperately" want to read and can't find them in DRM-Free form, I visit the local library. If the library doesn't have it, I will buy a print version. As long as it isn't a technical reference manual I will use frequently, I then donate it to the library when I'm done with it.