Most businesses have either already migrated all or part of their estate to the cloud or are pursuing a cloud-first policy with AWS and Azure being the most popular choices.
The cloud is not necessarily cheaper than traditional on-premise solutions, however it does all but eliminate Cap-Ex in favour of Op-Ex and enables small businesses to appear much larger than they are.
The cloud also eliminates more than 90% of down-time and can be scaled-up and down on demand.