We can’t force shoppers but we can certainly gently nudge them.
If a visitor to your site leaves for your Amazon page you are basically paying an affiliate tax that was yours to keep.
Can this be prevented? Let’s look at a product page on Headsets.com:
They have an impossible to miss Buy from Amazon.com button. On click, you are taken to their Amazon page. Goodbye margins.
Here is what we would have done if headsets.com was a client. When a shopper clicks Buy from Amazon.com we’ll show this popup: