Two recent salary surveys have shown that R language skills attract median salaries in excess of $110,000 in the United States.
In the 2014 Dice Tech Salary Survey of over 17,000 technology professionals, the highest-paid IT skill was R programming. While big-data skills in general featured strongly in the top tier, having R at the top of the list reflects the strong demand for skills to make sense of, and extract value from big data.
via R skills attract the highest salaries | (R news & tutorials).