Not sure why a manufacturer wouldn't sell direct when we are talking quantities of well over the thousands.
It is cheaper to buy from Worth Company than it is to buy from Barlows or Janns for the same product.
Jann's and Barlows are great for people who only need a few hundred of something at a time, but it is not cost effective if you want 5,000 + at one time.
I get all my beads, clevis's, split rings, blades, and lure bodies from Worth because it is much more cost effective.
But I would like to get my lure dressings, eyes, buzz blades, etc. from manufacturers as well to help cut down on costs.