Amazon is doing great and Jeff Bezos is making a lot of money, at some point there will be some sort of saturation or competition, that will make it very difficult for him to hit a trillion dollar.
As a amazon customer for 4 years, it was doing great for me also. But in April 2018, I purchased a chair from amazon seller and the chair broke in 2 months. The seller is disconnecting my phone calls. No refund and not giving me a new chair. No help from amazon also. Amazon just walked away.
The chair was my biggest/costliest purchase from amazon. I lost all the discounts I got from amazon.
When you buy offline, the sellers are within 10 miles of your residence or work. but when you buy from amazon or e-commerce websites the sellers can be 25 miles or 40 miles away or in another city or state.
Now I will buy from online stores or factories/manufacturers website only. E-commerce website can bring you lots of losses in the long run/future.
Reputed and world famous brands like Samsung, Dell, Tropicana, Coca Cola, Kaspersky will get buyers directly from their websites. Manufacturers/factories have the best quality and lowest price and unlimited supply of products and services.
Google search can be bad for amazon by sending people directly to Dell, Samsung etc..