After much thought, I decided to build my digital library on DRM-free EPUBs. That means buying from DRM-free sources like TidBITS, O'Reilly, and some science fiction books from Tor/Forge or buying from Adobe Adept DRMd Google Books and using DeDRM.
It was a relief to get that all sorted out. Now I just needed a handheld eBook Reader other than my too small iPhone 5 . I gave up on the Nexus 7 last year, and I don't love the current crop of iPads , so I took the advice of some appnetizens and tried "freedom-friendly" Kobo. I really like the idea of moving EPUBs on and off the device with a simple SD card.
Alas, Kobo seems to have abandoned the US market. I found some dusty old Kobos at a local independent bookstore, but one was broken and the other was too small. I tried ordering the HD Aura but Kobo's webstore checkout failed repeatedly. Then I tried to order a Kobo Glo on NewEgg and found they were selling a $120 device for $150.
I finally decided Kobo has effectively exited the US marketplace.
Then I thought the Nook might be the closest thing to an American Kobo - never mind that B&N is at the edge of extinction. I ran off to my local B&N (once we thought these were scary, now, like Microsoft, they seem sad and vulnerable) to give an eInk Nook a try.
The page turn flicker killed me. I felt like someone was tapping my head with each page turn. Maybe there was something wrong with those floor models, the wee Kobo I tried didn't seem so bad.
That leaves the Amazon Paperwhite. I've already sold my soul to Apple, I don't need another closed shot wannabe monopoly owning my stuff.
Which brings me back to those iPads I don't like, or the new "retina" Nexus 7.
Or I could wait anther six months.
 The Mini seems small and isn't Retina. The iPad Retina is too heavy. In both cases I really miss the convenience of a simple SD card.
 The iPhone 5 has the right screen, but for technical book reading I need something bigger.