My first e-reader wasn’t a Kindle, it was a Nook. It had a 6-inch 167 ppi E-Ink display and a tiny, terrible, but exciting LED display underneath. There was a headphone jack, wi-fi, and a music player built right in. Coming out a year before the iPad, it felt electric. It felt like Star Trek. It felt like the perfect bridge device between my smartphone and my computer. But soon Amazon turned its considerable might, and ability to subsidize…