No, I don't. They are no longer the consistently lowest price for many items where they used to be. They rely on Prime subscribers valuing the convenience of Prime over slight pricing differences elsewhere.
However I absolutely believe they are taking a page from Walmart with regards to twisting the arm of their vendors and merchants to get the lowest prices possible and potentially driving down quality as a result. Lower quality/higher-margin items don't necessarily mean they will sell at a discounted price.
If anything, Amazon is worse than Walmart brick and mortar stores since their third party sellers are not vetted.
Imagine the kerfuffle that would arise if Walmart was selling counterfeit products in their store.