I do know one thing. That Spinister is cool. I adore the fact that he's a bit of a mystery, that no one seems to know anything about him, Autobot OR Decepticon. I loves the mysterious characters, and Spinister is certainly one of those.
In the Marvel G1 comics, Spinister was part of Thunderwing's Mayhe Attack Squad (the Decepticon version of the Wreckers). But Spinister was never subservient to Thunderwing. He was more of a thinker than the others, more willing to go against Thunderwing if he acted too crazy. To Spinister's mind, Thunderwing leaving Needlenose to the tender mercies of the Matrix infused horror on planet VsQs was too far.
The fact that Spinister rebelled always made me like him. I like the fact that Furman writes Decepticons who ARE for their cause, and who will stick together and not split apart when things go wrong. They're an army, after all, and armies don't usually cut and run or leave comrades. Not most of the time, anyways.
It does look like the James Roberts has struck again with Spinister - MTMTE #7 features himself, so I would imagine he is now nigh impossible to find on the eBay. On the other hand though, if he's more popular we might get a modern version of him that isn't just for Botcon attendees. Hmm...