Amazon is a marketplace. There is no price vetting. If a third party wants to sell beans on Amazon for more money than they cost elsewhere, that’s not Amazon’s problem. They do not set prices for third-party sellers.

In fact, most of those beans are probably being drop-shipped from Wal Mart.

For items that Amazon is selling first-party, you can bet that they know exactly what all of the other major retailers are selling for, and they’ll be within pennies of their price, if not beating it.