I switched to a Paperwhite from a NSTWGL. I don't regret it in the least. If you'll be reading a significant amount in the sunlight, are really averse to Amazon, feel you need physical buttons, or really think you'll definitely need the SD card, you should go with the Glow. \
Otherwise, personally, I'd go with the Paperwhite. The screen quality when lit is considerably better, in my opinion.
ETA: Also, I prefer the Nook's handling of PDFs (pulling the text out and flowing it). Amazon just has you zoom in. Although you can do two-finger gestures to make this easier, it doesn't compare to reflowing the text.
I prefer Kindles's highlighting and looking up words, along with its automatic justification of books.
Last edited by 7hir7een; 10-07-2012 at 10:02 PM.