Power Surge Protection Disaster can also occur when your power goes out. In doing so, they risk the loss of the work they are doing when an unexpected power interruption occurs. A good UPS will give you adequate time to save your work and exit the system properly when a power outage occurs. It will also allow you to avoid the more insidious problems of brownouts and the damage they can do to a computer system. If you are unwilling to put in UPSs, the very least you should do is be sure that proper surge protectors are in place to protect from lightening strikes and power spikes which can be devastating to a computer system.
Surge protectors are also a necessity for other office equipment.
Photocopiers, fax machines, telephone systems and the like can also suffer from power strikes. Recently, a thunderstorm caused three photocopiers in three different businesses in my community to fail. Luckily, I had a surge protector on my copier. While the lightening strike destroyed the surge protector's ability to function, my copier was unaffected. Always check the manufacturer's literature to determine how long the protector you've chosen will be guaranteed to function.