It's all relative but I wouldn't call the Blackwing 602 "ludicrously expensive"...they cost about $1.50 per pencil.
Though maybe you are thinking of the vintage Blackwing pencils. Blackwing used to be made by a different company (Eberhard) decades ago. These older vintage Blackwing pencils if you can find one cost like $50 today. Still the new ones being made are about $1.50 and are great too.