Losing a favorite pipe tobacco is a pain, for sure, I think that a lot of us went through this. MCClelland makes among the best American Virginias and Va/Pers and will be missed. The STG Dunhills are worse than the ones made under Orlik, for me the best ones were Murray made. Some old timers will tell me that Murray's were crap when compared to the original and I would tend to believe them, knowing no better. Very few good things last forever, it's the way of the world.
This is to say that eventually, a pipe smoker will have to grow his own pipe tobacco and become independent of the market whims.