Cisco Networking As A Career, How Advisable?

hi guys,
i happen to be one of them unlucky pple when it comes to nigerian university education, those guys simply dont want me to have a bsc. so now am thinking of other career paths to follow and i came across cisco. pls i need advice on how viable this whole networking thing is in nigeria. am i employable with a ccna degree? how big is the it market in nigeria?, and how expensive is the tranning?