Public Clouds eventually becomes expensive! . You can hire a rented car service whenever you need, but would'nt you like to own your own car when you have to use it throughout the year ? The same applies to hired computing services. At scale the operational costs gets too high. Server Hardware is usually cheaper , the key is to utilize hardware in such a way that allows high availability, scalability and manageability. Fortunately opensource technologies like OpenStack and CloudStack enables enterprises to create high quality cloud services in-house (i.e: OnPremise) utilizing commodity hardware and some IT skills. RedGrape assists in implementing OpenStack in-house either on turnkey basis or as a consultancy.