If book value is based on movies then Hulk 181 is valued accurately. Up until recently Wolverine had appeared in more movies then any other superhero, they actually go out of their way to find how to put Wolverine in a movie
"So we are just about finished with Spiderman 652,l 'Death of dude on top of apartment in AF15 I'm wondering if somehow we can put Logan coming out of a variety store with a bag of doritos as Spidey flies by!"
The only character/person who appears more then Wolverine is Stan Lee (RIP Champ)
But tbf Wolverine is probably ranked in the top ten superheroes of all time
That book you wanted has gone up $400 in 2 years, which is more interest then a GIC (canadian bond)