I had a roll of 5000 labels I threw away ten years ago.
When I first started selling super glue it cost 6 bucks
(retail) per small bottle. That left plenty of room for
markup.

Now you have to sell a pallet load just to make a
few bucks.

What killed the deal was when the wholesaler put
thousands of dollars of brand new plastic bottles
of superglue right next to several hundred bottles
of CA hardening accelerator. Two weeks after
buying the glue (and making hundreds of deals with
fly shops) all the glue turned rock hard on the shelf.

Whose fault was that? Mine and theirs more or less
equally I guess. I had another one of those good ideas.
But I do tend to play loose with the details.