SAP training - advisable or not?

There are not many modules in SAP that cover your current field of work. Before you would like to take up SAP training, you should be clear about what you are planning to do after that. If you want to change careers and go into core finance and financial consulting then perhaps you cant consider it. SAP FICO would be a good start. However, since you have not mentioned what you are planning on doing in the future in the question, perhaps you can go to a good SAP training center and talk to a SAP instructor and get some clarity on what modules will suit your career plan.