I think WotC sets the WPN release date as a gesture of good faith to small hobby retailers and the gaming community. WotC genuinely does care about those small stores, because they're the ones that provide all the avenues for brand-building opportunities like Organized Play. That said, WotC can't do much to stop a large retailer like Chapters from breaking the street date, because it's a risk to prokvoke them with threats, as @Mirtek and others have pointed out. I suspect WotC can't afford to bite the hand that feeds them so many sales and displays their products in the mainstream public sphere.I don't understand this -- if they've bothered set a release date and are trying to support game stores, Chapters' actions undermine that completely. (as I tried to set out in the OP).
Another point to consider is that Chapters is Canadian, and that Canada's market for D&D is probably around one tenth the size of the United States' (and probably only half to two-thirds the size of the UK market, as well). Globally Canada probably only accounts for a small fraction of D&D sales, so even a "big" street date break in Canada is minor. WotC might even consider these early Canadian releases as free hype in the week before the other 95% of the world can buy the same products. It still sucks for Canadian LGSs, but WotC certainly isn't losing in this arrangement.
This is a great post.Or Chapters doesn't care what WotC says since it's such a small part of their business that they wouldn't notice it in their books when WotC removes them from their list of retailers.
Sure, it's one thing to ignore the street date of the newest Twillight or Harry Potter and be excluded from selling their sequels, but no longer being allowed to sell D&D is quite different.
I can easily imaginge a conversation:
"WotC just informed us that we're banned from selling their D&D books."
"Wait, what? We sold D&D? Isn't that this game for satanists in steam tunnels?"
"Actually didn't really know we sold it either. Seems we broke a street day or something, whatever."