I'm not sure I agree, the FCBD issues and issue 1 are hot, other issues don't seem to be going for that much.
Issue two sells a little..
These will slowly heat up... When walking dead was heating up, no one except the true readers knew what issues were 1st appearances etc..
I remember every 10th post in the WD thread was: hey. What are the key issues of WD again, and why.
It was crazy to watch those issues go from 5 dollars.. To 20 to 50 in a matter of weeks.
This book has soooo much potential.. But the show needs to be made .. Till then