Ok, first off:
YES, there is an element of rehash in this special. Is this a bad thing? Not really. The majority of the "recycled" elements occur during the volunteer segment which I'm perfectly okay with since the mark's reactions become a key part of the segment. The other reason I can see for material getting reused is that Comedy Central has never put Amazing Jonathan out of DVD before (with the exception of some sampler disc I saw at FYE).
The special itself is fantastic. A lot of classic AJ moments and a bunch of random (and I mean RANDOM) appearances by Psychic Tanya, who serves as something of a pythonesque segue character in this show (complimentary!!!!!!). There's even a "REAL" Magic Trick: Copperfield is put to SHAME!
The only real complaint I have (and it's minor, really) is with the DVD itself. Unlike some of their other releases, Comedy Central did not include a true uncensored version of the special. Instead, they packed the deleted scenes into a special features menu. It would have been awesome to see this special uninterrupted (particularly for the extended messing with John) but at least they are there.
So is this DVD for you? Let me ask: Do you think you could be entertained by killing "pigeons", hanging a dead rabbit, Drinking Windex & Drano, eating Razor blades, fire, clowns, inspiring near psychotic paranoia in your handpicked assistant, a semi-psychotic psudeo-psychic and a somewhat clumsy hot nurse? I think it's friggin' hysterical. This DVD is for me.