I have an e-ink device from B&N and it just sucks as shipped... Never got around to hacking it to make it more functional.
Tried the whole normal tablet reading thing and I just hate it.
I still buy paper books and prefer them. When I do e-reading I do it on a computer and large monitor / high resolution.
My issues with the reading devices are resolution still not there, form factor not comparable to book and honestly if casually reading, not at a computer so dealing with tiny displays on devices.
If I am away from the computer reading in lounge mode, the whole device, tablet, etc. cause me more neck, hand, related stress than a book. Industry really needs to consider other sorts of mounts, accessories, etc. to assist in more non traditional environments for these devices (i.e. while lounging on couch, while laying in bed, etc.).
There are plenty of used books at discount rates at level of the e-book stuff or below. I mean as far as I see it, Amazon, B&N pricing is just to mop up market share and kill traditional paper publishing. Once the market share rate is accomplished they'll float the prices back up.
That Kobo Glo looks fairly interesting