they were there first, that is why they were successful To be fair they were there with e-commerce and cloud services so many years ahead the competition it is

they were there first, that is why they were successful To be fair they were there with e-commerce and cloud services so many years ahead the competition it is understandable to some extent why their products have so many warts. Competitors could see things that didn't work well in amazon products and improve where it was obvious They have a moat around their products, in retail they have the user-base and in AWS they have the developer-base (devs who know how to set up things in AWS). These things take a long time to erode away as competition increases no matter how good the competition product is