Amazon may have kickstarted the ereading device boom, but Kindles surely don't deserve to be as popular as they are any more, especially with a tech-savvy crowd like HN. Other alternatives exist that are much, much better. Anyone who cares about books at all should purchase a device that has native epub support and a good epub renderer. (I.e., not Adobe Digital Editions.) Kobo is a very good option that ticks those boxes, though other alternatives exist. The native iOS Books app on iPad is probably the top tier of native epub renderers though that's obviously not an eink option.