Walking Deads never seems to make your lists, hard to see Bedlam as more of a popular book than Walking Dead.
Because I specifically filter out Walking Dead. It's so damn huge is engulfs everything else. What do you want me to tell you? Walking Dead is hot? It's trending up? Well... it is.
I wonder if you can do a Walking Dead-only filter to report which issues are hot these days? Obviously 1 and 19, but I wonder about the legs of other issues such as 27, 33, 48, 61, 92, etc. Also, I wonder if not reporting WD issues creates a false sense of WD collectability fading with those that read your reports (which I very much enjoy, thanks!)?
Yah what he dane323 says, there are many minor keys and scarce variants within the run. I'm sure there is some shuffling around with the demand on those books as characters are released on the show.
You have an innovative web site going, you could just create a Walking Dead sub catagory.