One of the advantages of the cloud solutions is that you can very freely customize the resourcing based on your requirements and you can also use the services only as much as you really need. For example, we can have a powerful 32 CPU core server automatically started when a complex batch process is scheduled to happen. Maybe just for 30 minutes a day, if so needed. Other times, there could be just a small and cheap server taking care of the basic operations.
There are countless of possibilities that can be utlized.