"BestBuy is one of the biggest electronics retailers in the world. If they can't sort products properly, then it's not reasonable for a vendor to expect anybody to do it."

Lots of enormous corporations are desperately incompetent at various things; that doesn't mean it's unreasonable to ask for competence. In this case, perhaps Best Buy was very good at selling electronics before the Web became a primary way to shop for products, and never managed to make the transition effectively. It happens all the times.