As long as they have 3-4 other solid competitors in each market they work, they haven't exactly won. And honestly, Amazon service is less than stellar at times,

As long as they have 3-4 other solid competitors in each market they work, they haven't exactly won. And honestly, Amazon service is less than stellar at times, and most of the services people use them for amount to brokering the purchase or rental of a product. This sounds like a service model that in under 20 years will be completely unprofitable and replicated across all competition. Certainly they'll edge up somehow, but it's unclear how.