All those extra takes are neat, but honestly I'd probably listen to them all once and then never again. And aren't most of them on the Anthologies already anyway? I already know that stuff. So I probably won't buy this.
Having new Stereo mixes is kinda cool i guess. The old stereo and mono mixes they put out in those big boxsets a several years back are basically perfect already, so at least a new stereo mix might be potentially interesting. There was nothing wrong with the original mix though, unlike the earlier albums with the awkward hard panned instruments. I wish they'd remix those instead!