In the beginning Amazon did have negligible margins on most books it sold and negative margins on quite a lot, since they actually went to physical bookstores to buy books that they then shipped and sold at a lower price. AWS is certainly the most obvious part but Amazon Prime produces massive sales that have excellent GM's. They no longer have the cheapest prices, but do have the most efficient distribution system and best availability. Because they are so diverse now it is hard to make a summary, but I ague that logistics is far and away the largest competitive advantage for them with AWS the other one. I enjoy going deep on this one but both AAPL and AMZN are really OT for this Forum.
Still we Bulls really do need useful analogues for TSLA so that we keep from drinking too much Kook-Aid ourselves.
In my view we lack sufficient examination of Tesla distribution logistics weaknesses, overall customer service support, fleet service, parts supply, demand forecasting. In short all those things that make AMZN so brilliant. Tesla cannot long continue with ad-hoc fleet support. Tesla will have difficulty long prospering without solving US distribution in TX, MI, NY, LA and so on, nor can they thrive without solving Noway-style excessive growth disasters.I am long but quite concerned about these issues as GF-1 reaches maturity, GF-3 and GF-4 enter in China and the EU while GF-2 actually begins to produce in volume. In this area Amazon is King and Tesla is thus far the Joker.
Tesla does have product like nobody else. From some time that will be enough but...