I am sure there are those would could grow seng and probably a mix of other wild stuff (goldenseal, cohash, etc) and make a decent living in that 50k range.
Think you would have to first have a very good location, and a love for growing it and determination that would get you past all of those variables and potential problems.
I have been planting ginseng berries (on wild) since back around 1976 and just last fall planted my first stratified seed.
I ended up planting 4 lbs - around 28,000 seeds my first fall/winter.
My goal is that when I do retire, I will have a little extra income from the ginseng, perhaps pay for a yearly vacation that way and a little more if possible.
In Scotts book it shows that (if planting in good locations) for each pound of seed you plant you should harvest around 7 lbs dry root.
If it actually worked out like that - my 4 pounds of seed planted should yield 28 lbs of dry wild simulated seng - that will basicaly be indistinguishable from true wild.
We sold our wild last year for 700.00/lb
If I got only 500.00 for that 28 lbs that works out to 14,000.00
That would sure take me and my honey on a nice vacation and then some

TNhunter