There are many areas that you can become CompTIA certified in, CompTIA are a non vndor specifc certification provider. They are also a non-profit organisation who build courses for the industry on the advice of people in the inductry. CompTIA work hard to find out what skills and knowlage are needed in the real world and disgn certifications to accomadate for them.
More efficient in the work place
Less likely to make any mistakes in the work place (these can be costly)
Show a deeper understanding of specialist areas and technologies
Show an attitude and aptitude to develop your personal skillets