Cloud computing solutions provide users with on-demand services. These services are available directly thanks to the industrialization of delivery systems. After you've selected the service you want, you submit your request to a system that processes it directly, without human intervention. This high-level automation delivers a fast, self-service model.
A few years ago, startup costs may have been a real constraint but not so with cloud computing solutions. Billing is adapted to your usage from the get-go. If your needs evolve over time, you can adapt your usage accordingly and only pay for the resources you need for your business.