Can someone explain why Amazon works so hard to direct searches into searches within its product categories? An example would be a search for 'Baking Soda' leading you to the 'Grocery & Gourmet Food' or 'Industrial & Scientific' categories. I'd much rather search for 'Baking Soda' and have it return every kind of 'Baking Soda' Amazon carries, as I want the best price and don't care how it's been categorized by the retailer. It's almost always faster to search for anything sold Amazon via a Google search outside of Amazon's own search engine.