A specialty business like PlanBags doesn't survive 50 years without building deep decades-long relationships with some customers. It's easy to forget that in tech when the biggest players shut down services with no lead time.
When I was buying a bunch of N95 masks I came across "Bona Fide Masks" and was initially taken aback that it was the same company as "ballchain.com". My first thought was "Oh great, some shady thing...".
Then I got looking into ballchain.com and was quite impressed for exactly what you say: they do something really well.
