If you're near a Target that still has it, the iRiver Story HD e-reader is being dumped for $50. At that rate, I sprung for it -- there have been rare occasions when both Malasada and I have wanted to use my Nook, and it'll give me some more comfort level with rooting and hacking my Nook.
Early impressions -- the text quality is noticeably better than my Nook (the Nook Wifi a.k.a. Nook Classic). There's less glare in bright light. Page turns are faster. It's substantially lighter, but also flimsy feeling, like the smallest lateral force would snap it. Then again, the Nook has a glass screen and the iRiver doesn't, and between that and its lightness, my guess is that the iRiver's more likely to survive falls.
What I like least is its Google Books-centric-ness. It repeatedly asks me if I want to turn off airplane mode to sync with Google Books. (No, I don't. That would be why you stay in airplane mode.)
But for $50 I still think it's a pretty good deal.
Now if only I had more time right now for reading...