When good employees leave it is not only a loss in terms of time, effort and all the cost associated with finding a suitable replacement but it is also the loss of losing unique knowledge and experience specifically associated to the organization; Losing good employees is a problem where prevention is most definitely the best cure.
It is a fact of life that employees will leave from time to time but it is useful for an employer to understand the reasons for an employee to leave so that they can be sure that personnel are leaving for reasons that are right and not reasons that are wrong and avoidable.
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By including exit surveys as part of the employee termination procedures organizations will generally benefit in a number of different ways. They will at the very least provide good records that could prove very valuable later, at best they will provide management with information that can help improve an organization spiritually and with the bottom line.