Another feature of cloud system is its flexible structure. Depending on your demand, its scale can easily be increased and decreased, so you pay for only what you use. In one phase of your business you may use a higher performing server while in other phases you may return to a more economic one. A pledge, stating to have the same price with competitors in terms of popular infrastructure services such as by-minute invoices and IT, storage, band width, means that you will always have unique prices for performance.