In general Linux administrators are extremely happy with their systems and the new-found control they have over the software. It is not unusual for these administrators to become devoted to Linux and to greatly prefer their Linux system to the typical commercial OSs that are available.
Certificates tell employers that the professional does indeed possess the necessary skills.
Furthermore, companies exploit the certification of the computer professionals they employ by advertising their certification skills to the customer. Linux certification tends to provide the computer professional with greater employment opportunities. For example, if one wanted to move from programming into Internet attachment, firewall implementation, and system security, a Linux certificate will not guarantee a new Internet job, but it will go a long way toward helping one obtain the new position. Certificates tend to lead to higher wages. Certificates provide a highly visible form of accomplishment.