I just bought mine for $49 and I'm really happy i found some other grateful owners. Target still hasn't changed the display price, but they definitely are ringing up at $49.99!
My first impression is that a lot of problems or quirks seemed to have been improved upon since the release. I saw mentions of ghosting and bad wifi among other things, but I haven't noticed any of those problems with the newest firmware. I read on it last night for about 3 hours. Anyway I just signed up to say thanks for contributing to the community. I'll try to stick around a bit.