I really like the idea of center fold maps. they won't damage the cover. They can be be bigger and better maps. Just being bigger will make the maps better. For example the Bloodfang Goblins maps feels claustrophobic (probably intentionally so. And I would love to have double sided maps. Yes, I know, I am just being greedy.
On another note; my Friendly Local Gaming/ Comic Book Shop told me that the maps where a major selling point for the comic and that sales for #7 dropped dramatically.