I agree that Modulok being packaged differently made him seem more special. I never liked how his torso was so thin. I liked the design, but I would've preferred him to be more muscular to fit in with the rest of the line. His joints were not as big as the ones of the regular figures, so he could not be mixed with Trap Jaw's arms or anyone else's. The fingers (claws) were also too thin. I would've preferred, again, something with a bit more weight and girth.
I never liked his second head. It looked stupid with that green butterfly looking thing on his eyes. I did like the idea of a second head, though. The idea of using more than one box of parts to assemble a giant creature was very appealing to me as a child. I wanted to buy so many that I could make him touch the ceiling of my bedroom. Alas, I never bought more than one. I liked the girth on the Multi-Bot figure much more. It seemed to match the bulkiness of the MOTU line. The orange head was really neat, but I didn't like that human-faced one. I'd always put that one with the Modulok Head I didn't like.
Despite listing it's many faults that I found with it, I always enjoyed Modulok and would sometimes become distracted with configuring him, I'd forget about the others. He-Man was left alone on a cliff or in a pit somewhere while I was essentially playing a form of "dress up" with Modulok.
The Modulok depicted in the mini-comic was freakishly creepy and really awesome! The idea of receiving a box with just a head, or a leg, or an arm seems very eerie to me. The idea of him being with Skeletor, then Hordak, made him seem like what I thought all of the villains would've been like in real life... just thugs that went from gang to gang. I liked that about the cartoon.
Rock on Modulok!