At this point in time, is a disc like this even necessary? I mean, is there a horror fan who doesn't already have this one in their collection (and have probably bought it more than once)?

Yeah, the picture and sound are great, maybe better than any of the umpteen versions before it, but stellar pix and sound have never been required for this one to do its job, which is to scare the shit out of people. But we all already have this one, and I don't think the improved specs make it worth the $20 retail price.

Sure, there are lots of new extras. including never-before-seen interviews and documentaries. But, at the same same, what self-respecting horror doesn't already know everything about the film's production?

Yes, I know this is being released in conjunction with Romero's latest zombie opus, "Diary of the Dead," but do yourself a favor...if you really want to re-acquaint yourself with this classic, one of your older editions will do just fine (unless, of course, you were one of those suckered into picking up the 30th Anniversary Edition...the one with the 'new' footage clumsily added).