Cloud infrastructure providers like Amazon (AWS), Google Cloud, Microsoft Azure, Digital Ocean pour millions into hardware, firewalls and security towards their datacentres. The astronomical cost of maintaining your own data centre suddenly disappeared with the advent of infrastructure as a service. Now you get access to the latest and greatest hardware, assurance of 99.95% availability, regular backups and security at a fraction of the cost. In the past, when you needed more server space or memory you had to purchase new hardware. Now it can be done at the click of a button with only an incremental cost. Cloud computing power is now so accessible and prevalent that companies will only charge you for what you use down to the second! This is almost like being charged for electricity consumption which by the way is where this will all be heading.