I agree with you. I avoid the AVGN videos for years since I always thought they were lame (and still do to some extent) and so was late on the Cinemassacre train, but I ended up liking the ones where he's acting naturally. Even the best parts of the AVGN series to me were the more informative parts, rather than the "I'D RATHER LICK DIARRHEA OFF A DEAD WARTHOG'S TAINT THAN PLAY THIS SHITLOAD OF FUCK" stuff the series is known for. When James Rolfe is enthusiastic and willing to put work into videos, like the one about the cardboard-covered lamp in Dracula, they can turn out great. I'm not a fan of the guy as a person, but I appreciate his respect for the really classic horror and science fiction movies that aren't necessarily very popular with younger viewers. Same for Mike Matei and his Atari fetish.
For me, guys who put their own spin on the "angry reviewer" style are more interesting than the AVGN videos ever were.