You could buy one of the really ugly Chinese e-ink readers, but I wouldn't recommend it. Kobo makes several very nice ereaders which support EPUB, MOBI, HTML,

You could buy one of the really ugly Chinese e-ink readers, but I wouldn't recommend it. Kobo makes several very nice ereaders which support EPUB, MOBI, HTML, TXT, even CBR/CBZ out of the box. They technically support DRM through the books sold in their marketplace, but you never have to use that.