By migrating to the cloud you can take advantage of Sitecore’s subscription licence. The principle is simple. You pay for the resources you need when you need them. Working with the Sitecore licensing team, you can find the level of investment that’s right for your business.
Scale up or down depending on demand. Sitecore’s distributed architecture means that you can focus resources exactly where needed. On a high traffic day such as black Friday, scale up your delivery servers. When things are quiet, scale them down.