It just dawned on me that I've heard a nasty rumour.
Apparently Glenshee Linen is made for the Japanese market. They have ceased their ordering of the linen, so it is not economical to purchase part of the lot created for their market any longer.
What does that mean? Buy all the Glenshee you can get your mitts on, but make sure it's the real stuff, as rumour also has it that there are impostor linens out there!