Jughead,
I have bought various seeds, tools and garden supplies from Johnny's over the years and have been happy with the quality of product and service.
Never bought ginseng seed or rootlets from them though and not sure about their source, but expect it is from a shade grown cultivated source somewhere.
And at 154.50/lb - that is a fairly steep price to pay.
If you knew that the source was wild-simulated good disease free seed, that price might not be so bad, but I doubt seriously that is the case.
Good Luck !
TNhunter