> In this specific example, where the claim is that Amazon and Apple colluded to raise prices by only allowing authorized Apple resellers on amazon.com, I guess I'm kind of sympathetic to Apple.

This is false:

“Ultimately Apple proposed, and Amazon agreed, to limit the number of resellers in each country to no more than 20. This arbitrary and purely quantitative threshold excluded even Authorized Resellers of Apple products.”

Apple is alleged to have created an Agreement with Amazon that retroactively limited the marketplaces where Apple Authorized Resellers could sell Apple products.