[parkher]

There are things that I want in an e-reader but not all of them are equally important.
The MUST HAVE things are (especially the first three features):

1. possibility to set wide enough margins, especially on 6" reader in landscape
Unfortunately, the margin thing is not to be found anywhere. In practice, I need Cool Reader 3 for that.
On 6" screen I read in landscape only with the width of text as in a regular mass market paperback, therefore margins are needed at least 1 cm on each side. If the line of text is too long, reading is not comfortable enough. If margins are too narrow or the line of text is too short (portrait mode) - not comfortable too.

2. having Amasis font or a possibility to add it.
I tried many many fonts and Amasis stand out for me as the most readable font by far - I can see whole words and not separate letters best with Amasis.
So now I no longer can even think about reading with a different font.

3. To be able to switch off the integrated lighting completely. Or best, not to have one at all.
With PW, you need special tricks or hacks to achieve it. You buy an e-ink screen and it is glowing all the time even at the minimal setting. It is absurd.
I would never ever read on a glowing screen. Again, that's why I buy e-ink - so the screen would not glow. Printed books do not glow in the dark.

4. To be able to have books ordered my way in hierarchical nested folders and not in some stupid collections or shelves requiring Calibre to make them and so inconvenient to use because they are not nested.

5. to have a long (best - unlimited) list of last read books. I like reading many books in parallel.

6. Even if I could live without 4. and 5. and let's say, read only one book (brrr...) I would still need an external card - for dictionaries. Typically I have about 10 GB of dictionaries simultaneously. I like having them even when reading just one book at a time!
Looking up words or phrases is so easy and quick on an e-reader so why not get educated with the help of encyclopedic dictionaries while reading?


7. I need buttons, if not many, how about just two (next page, previous page) or just one: next page ?
I cannot bring myself to touching the screen with my fingers.
I own an Aura HD with excellent screen but it has no buttons - I cannot get used to it. Most likely I will through it away.
An e-reader is not a general purpose tablet, at least the next page button should be always present.

In conclusion: I am very happy with my rooted T2. It has everything I want in an e-reader. Cool Reader 3 ensures that I can have wide margins, any font I want, the structure of books I want, a handy list of recent books, and as a bonus - support for multiple formats.

I would never buy a 6" e-reader that cannot be rooted (or does not have CR natively, etc) or without buttons. Or PW because it is glowing.

But I bought Aura HD just because it is the only reader with 6.8" screen and I don't need landscape with 6.8" - the screen is wide enough for portrait + comfortable enough margins. So I bought it even though it has no buttons. It takes away much of the pleasure of reading, unfortunately. I am still trying to adjust, playing games on Aura HD - it requires touching the screen all the time. I am OK somehow with touching the screen for looking up words in a dictionary, though. So maybe there is hope. But I really hope that other 6.8" readers (with buttons) will appear.
As to other requirements, Aura HD is fine: you can already install Cool Reader on it, you can avoid the slow Kobo book indexing (not needed with CR3 anyway), soon it will support unlimited dictionaries from Cool Reader.
And it has both internal and external micro SD card. So you can replace the internal card with 32 GB one and also have a 32 GB external card if you like.

It seems to me that Nook ST is still one of the best choices - it meets all my requirements.

There was mentioned Nook STR - I never heard of it.
Even the evil Google does not help.
Is it a newer version of Nook ST?