Have been meaning to post the difference quickly for a while now...
A nomad lives out of a suit case a little bit:
They're go with the flow, and good about packing light so they can pick up and go.
But a jetsetter's baller (or ballerina) as the case may be. They've got a home base they always come back to and recharge at. They're just also perpetually portable, packed and ready to roam about:
So glad to be able to clear that up.
Many thanks to Little B for his help demonstrating this distinction.