With your last bowl of 1792 cogitate on this....
When the pipe tobacco market was 100 times the size it is today Samuel Gawith was the same size with very likely the same max output capacity that it has today. The difference? Big Tobacco was making & selling most of the pipe tobacco in the world back then. Gawith was a small regional supplier to the UK Trade. And virtually no N. American pipe smokers had ever heard of Gawith.
Moral of the story: The shortages will get worse.
Big Tobacco has mostly exited the pipe tobacco market and Gawith is still not growing to meet demand. We're experiencing a resurgence in pipe smoking and the small companies are either having or will shortly be experiencing difficulty keeping enough inventory flowing to keep shelves stocked unless they grow.
But that market demand is increasing means there is investment ie discontinued blends returning and virtually no recently discontinued blends (due to declining sales). Which, indeed, is one of the characteristics of the market in the US.