Amazon does have the oasis- the first device I actually prefer to a real book
I've had a non-backlit Kindle (I think they now call it the "Kindle Keyboard" because it has a keyboard below the screen) since 2010, when my parents gave it to me for Christmas (gave my wife one as well). It's still running strong and I use it daily on the Metro except during weeks when I'm off work (like this week). For reading, the Kindle devices with the "e-ink" displays are outstanding, much better for your eyes than "tablets" like the Kindle Fire or the iPad or whatever. But if the book has a lot of graphics or illustrations or the like, the monochrome Kindle display isn't ideal and doesn't allow for easy zooming. I have the Kindle app installed on my iPhone and iPad and I downloaded the Song of Ice and Fire companion book (
The World of Ice and Fire, a purported "in-world viewpoint" history of Westeros) to the iPad app instead of to my regular Kindle because there's so much artwork. Good choice for that book, though the text is definitely smaller.
A lot of the books I read are several hundred pages or more (current one I'm reading is about 737 pages), so carrying the Kindle is a lot more convenient than carrying the full-size book. It's nice to be able to sync it to the app, too, so that if I go somewhere I might have to wait around but I don't want to carry my Kindle (say, I go to the airport to pick up my wife) I can still read my book. The man in front of us at Caps games is always reading via the Kindle app on his phone during intermission.
Regarding Apple versus others, we have an older generation Apple TV we were given one Christmas, and we also have a Fire TV Cube and two Fire TV Sticks. Just got a new TV downstairs and I'm thinking I may put an Apple TV 4K down there (we are thinking about dropping DirecTV in favor of Vue later this summer even though it means no more Nats games—we'd save $80 a month!). The Fire devices are nice and voice-control is useful, but their app store is quite clunky (insofar as I can tell, it doesn't allow searching) and there seem to be fewer apps than what the Apple TV has from what I can tell via research (ours doesn't support downloading TV apps).