While I don't have any statistics to back it up, I believe that pipe smoking is a pastime with no future. None of my children or their friends smoke, and the most of the young people that do smoke where I live are into "vaping." I don't know any other pipe smokers younger than forty and, among the professional classes in this country at least, pipe smoking is a rarity. The fact that Big Tobacco has little financial interest catering to pipe smokers, combined with the ever increasing efforts of our governments to stamp out the use of tobacco, leads me to believe that pipe tobacco may very well be unavailable commercially in another decade or two.
So, IMO, instead of bemoaning the fact that some of our favorite blends are no longer available, we should be thankful that there is still so much quality leaf to be had.