AWS doesn't charge anything for elastic beanstalk beyond the standard price for resources, even though of course competing products like heroku charge a lot mor

AWS doesn't charge anything for elastic beanstalk beyond the standard price for resources, even though of course competing products like heroku charge a lot more. I'm not arguing about fairness, I'm sure that's not a concern for AWS either, but if you have a basic product with solid margins, doesn't it make sense to account something you build on top of that product as marketing or documentation, rather then as a distinct product that has to pay for itself?