I passed on the Anthrax. I am more a fan of the Bush era, and I am a big fan of Persistence of Time with Belladonna. With nothing from the latter, and obviously, this being Belladonna instead of Bush, I didn't really see the need to get it. I may change my mind at some point, but I don't know. For now, I'll live vicariously through you guys.
Regarding the whole live CD vs. live DVD thing...I usually get both, but I have found myself staring at my DVD/Blu ray concert collection more than a few times in the past year, wondering if I should part with some of it. I just don't watch it. Live CDs though...I still really enjoy having live captures of eras of bands I enjoy.
About the overdubs...it just depends. With video productions, overdubs are generally done. On audio CDs, it just depends. I mean I don't think the Fates audio from the upcoming released was messed with. That's why they recorded so many shows. They picked the best performances and went with it. However, on that newest Dokken live release with the original lineup...George was doing a clinic last week that my friend attended, and my buddy flat-out asked about the overdubs. He said Don had to overdub the entire thing. And even George admitted having to go in and play a couple of things again.
So, very few live video productions are completely clean. But I think if you get a live album culled from multiple shows, that's probably purely live.