Really? Now I'm not saying that I've been to a lot of stores, but in all the gaming stores I've visited and in the ones I've heard people talk about D&D, while definitely getting the most shelf space, isn't by far the only game they carry. In fact, the total number of non-D&D games in my LGS outnumber D&D by at least five to one, and they're fairly quick to stock up on new big-name releases (that then get bought out in the span of a day by rabid fans). I'm not disputing that most RPG sales happen online, that's probably a fact given this day and age, but there's plenty of ways to buy it in person still.