I think it's gonna be the opposite: with production stopped, any extant pipes will only increase in price. SPC has the cheapest at ~$2,750; I can see the same pipe going for 10 grand on ewwBay a year from now.
Ah well, I'll never own a Bentley either, anyway.
Going, perhaps, but not selling.
I see the pipes and tobaccos market as inevitably shrinking as the older generation of collectors give off one last fart, fall off the twig, and their collections and cellars go on the market, if not in the trash.
Further restrictions on tobacco and implements.
Less new collectors to take up the slack.
Less demand, more supply, decreased prices.
It's already happening with pipes as people focus on buying tobaccos. Prices are off on British pipes by 25-30 % over a few years ago. And some of the collectors who were into the higher end more collectible British pipes 20 years ago tell me prices are down more than that.
Maybe it will all go to China, which is still a strong market. Eventually that will change as all markets do.