Despite some who are claiming that C++ is becoming a "niche language" contracting sites like lance and odesk.com are showing that the number of worldwide jobs for C programmers is actually trending up. Check out this page stats odesk.com/trends/c%2B%2B -What I think is most fascinating is that it has only started trending down recently - is that a sign of the current economic recession going on in the USA? Also notice the amount of global programmers doing C contract work.
C and C++ will never go down because its always the base of all programming languages and person who knows it will always be able to scale to the emerging technologies and so thats one more reason as well.