You'd probably want to add in RPGs and some SFF merchandise - Edit 1
Before modification by Isaac at 17/02/2011 10:36:38 PM
D&D books, 40k minis, star wars collectibles, etc, I think one would be aiming to be a SFF store as opposed to a SFF bookstore, comic books and such maybe. There are stores that aim that way, your average gaming store just more books, those usually specifically carry SFF bestsellers and game-based novels