Pricing does change, and it varies depending on the frequency of use and the amount of data stored. The most well-known - Microsoft Azure, AWS (Amazon), and Google Cloud charge between $0.0184/GB to $0.035/GB for the first 50TB per month. Ask your qualified Managed Services Provider - they will undoubtedly be able to arrange better pricing due to the volume of data storage they contract for, as well as the best, less expensive options.