Of thoses that do, many users do not make proper backups. The result is that thousands of small businesses lose hundreds of thousands of dollars worth of data annually to fire, theft,equipment failure, and many other common catastrophes. Even more lose data through every day user error. Of the businesses that do manage to perform proper backups, an even smaller percentage store their backup tapes offsite. Because of this many businesses go broke when a fire strikes, destroying their computers and their backup tapes.
Studies show that it takes an entire day to reenter an hour's worth of lost computer data.
Studies also show that businesses who lose a substantial amount of computer data will be out of business within two years. Now, so can data. Accidents do happen. You can get a new computer tomorrow. We can measure that job in hours, not months.