Just picked up issues 1&2 of this magazine from Twomorrows Publishing ( Alter Ego, Back Issue Jack Kirby Collector, etc.) If you haven't already tried it, I'd recommend giving it a read. While not necessarily focused on Universal Monsters, it covers movies, comics, creators and more. Cryptology reminds me of both the Monster Times and Comic Buyers Guide with a touch of Scary Monsters thrown in.
With the bankruptcy of Diamond, John and the crew could really use some sales! If you haven't tried their products before Cryptology might be a nice place to start.
RF