I guess I wasn't clear: I'd love to know how sales of TWS trades/hardcovers/compendiums have increased since the show premiered on Halloween. I guess there's been no statement made by Kirkman or Image about it, which means there might not be an increase...because I sure as hell would be sharing a story like that if it were me and mine.
I don't know about other people but I've had a waiting list to borrow my copies of the trades. That might be cannibalizing trade sales.