Many companies provide Web 3.0 Marketing services and competition between them is very big too. So cryptocurrency projects have a big choice of companies for promotion.
A lot depends on the development of the project and products its produce. If there will be only advartisement without any products it will be no practical use of the project.
I do not agree with you. Very often people do not check the development and the products of the project but they see the advertisement and promotion of the project.