>>ijidak+(OP)
I'm very thrown by the "hidden Buy box" argument. I thought Amazon did that on purpose to hide overpriced items from the wild west that is Amazon's marketplace/sellers. So a t-shirt for $100 gets no Buy box because it's overpriced.
>>Slix+3e
The argument is that a) is very important for sellers to get a bit button, and that b) Amazon uses that as threat of relaliation to get sellers to behave the way it wants. The latter point is almost the definition of monopoly.
Note that crucially this isn't a matter of interpretation. Amazon either IS doing this, or ISNT. The only question mark is can this be proven in court.