Yes, and after all, it's not as if learning R will prevent you trying out some models in Excel. In a life-time career, a 40-60 hour commitment for a new string

Yes, and after all, it's not as if learning R will prevent you trying out some models in Excel. In a life-time career, a 40-60 hour commitment for a new string to your bow that is as powerful as R is not a big investment.