Great tip - thanks for pointing it out. I tried what you said, and was surprised to find the first seventy items or so for WOTC were "not yet released/published"! Most were novels, so I was rather releaved that adding "(Dungeons & Dragons)" as someone suggested dropped it down to the game stuff and "only" 10 or so were in that category.
Now if they could just add to sort by "discount percentage" and/or an option to email you if an item went over X% discount. Presumeably a "wish list" function, which would mean I would actually use that function then!