My response would be, things can change. In simple dollars and cents terms, gasification isn’t sensible.
Probably the only person who is definitely money ahead on modern wood gassing is probably Wayne Keith, and perhaps people overseas, Vessa Mikkonen, and Max.
And there’s a pile of work, learning and development before it gets routine and reliable. Access to wood fuel, and the ability to process it easily enough are also key to the worth of the effort.
But what I would add, is that things can change. In 1939 in Europe they never imagined trying to live without petroleum. Lucky for them people were already hard up, just ending the great depression, and commercial wood gasifiers had a foothold. Suddenly the poor man alternative became a necessity. And then their lifeblood, to the degree that even the German army ran tanks from railhead to battle front on wood, then dismounted the units, only using real gasoline to fight.
The best time to have a skill is before you really need it. It is quite possible that petroleum pricing and availability could suddenly change for the worse. Then, as with the example of Steve’s eggs, current economic price is irrelevant. It’s then a question do I have, or don’t I?
Shaft power, and motive power are probably the greatest advances humans have made, and we would be in rough shape without them.