Nook Simple Touch $75
Just in time for the holidays, Barnes & Noble seems to be selling off all their bestselling ereaders. Maybe a tip off for a imminent new release? You can get a New Nook Simple Touch WiFi eReader $75 + Free Shipping via Ebay, and probably Overstock soon enough. Go here for details.
I'm actually tempted on finally jumping ship and going over to the dark side at this price point. I liked it a bit more than Amazon's new Kindle Touch, but the nonadjustable big margin spacing is kind of a deal killer for me.