As it turns out, premium always makes more money than standard. I will share examples, but before that, let me talk about what I exactly mean by premium.
Premium is a positioning of your brand from others in terms of quality and pricing. It goes the same way for any product. Even content. You will find websites who write standard articles and then there are websites who write thoughtful premium articles. These websites also charge you and limits your ability to view all contents. Harvard Business Review for example. You can only read 4 of their articles when you are not logged in and 8 when you are logged in. HBR also shares the articles for a cost and they have a premium subscription option for their print + online package.