So why expand your skill set at all? Why add more tools to your tool box? I imagine there might never be any reason at all beyond an endless curiosity.
I've been (slowly) learning to solder and fold form metal. Can these skills be utilized in my wire wrapping? Of course. Does it enhance my work? Not necessarily. New skills and tools do not equal better work. Just different work.
So, for me, learning a new skill is less about improving my work (ie, becoming a "real" jeweler, as perceived by large subset of society) and more about a joy of discovery. Naturally, I can continue to discover new designs in wire wrapping, new ways to
Learn as if you were to live forever."
~ Mahatma Gandhi