The benefits of UPS prices are clear to anyone, in particular for potential customers. First, with a UPS, businesses can avoid costly downtime when the electricity supply does not keep up. This reliability is vital for operations that simply cannot spare power. Second, UPS systems guard against power surges and sags--types of electric disturbance which can short out sensitive electronics--thus ensuring longer life spans for equipment. Third, by stabilizing voltage UPS systems contribute to the performance of connected devices as well as that of big computer systems in general. Finally, with the prohibitive cost of repairing damage and data loss both built into long term budgets far exceeding initial investment in any single UPS, is can be seen as practical and essential for any firm dependent on uninterrupted power supply.