Based on what you are saying, I'd save the money and stick with the Exit Row.

But, is that price correct? It seems a little high, and you should be getting a discount as an FO. I've been in EC once and it only cost $40 for me as a GM. I know the GM discount is more, but that seems like a large gap. On the other hand, I was flying ATL-MUC, so a TPAC flight may just cost more.