[Mivo]

As others have already expressed, I use an e-ink reader because it's much easier on my eyes. Also, I like the single-purpose aspect of a dedicated device, because it's less distracting and not associated with work.

I have an iPad, a 5.5" smartphone, a laptop, and a desktop -- all of them have high quality displays, and I stare at them all day every day. However, for reading longer texts, like books, I always fall back on the e-ink reader. Eyestrain aside, none of them work particularly well in bright daylight. I've tried, again and again, to get used to reading on the iPad or the phone, but these attempts never last longer than a book or two. Only e-ink readers give me a similar experience to reading a traditional paper book.

It's probably been mentioned already, but e-ink readers haven't really been evolving much over the past few years. They don't become obsolete as quickly as a smartphone or a tablet. There's not much incentive to upgrade one's e-ink reader, just like I don't upgrade my coffeemaker every year. What real innovations have we seen in the past few years? The frontlight and the night-/smartlight were bigger features, but besides that? I don't feel the higher dpi really matters much with e-ink devices.

I just bought a Pocketbook InkPad 3, and while it's lovely, I didn't really need it. I was, and still am, happy with my Kobo Glo (non-HD). I got the PB because I wanted to try a larger display (has both up- and downsides) and theorized that it would be useful to be able to have two ebooks open at the same time. But there was no actual need, no killer features that made my trusty Glo feel inadequate. Now my phone and my tablet, there is constant temptation to get the latest model.

If it wasn't for e-ink devices, I'd not buy or read ebooks. I'd stick to paper books instead.