Well, I’m hoping to stimulate something useful really, and of course I also want to buy. With fairly large purchases, it makes a significant difference between paying WASD $17.99, and paying some factory $3 for each bag of 125 orings.
For the orthodontist rings, the problem is they are not that lasting and are not meant to be. They turn yellow in under a year in a hot climate, then you have to remove them or they get nasty and sticky and eventually damage your keystems by sticking to them. Won't matter if you live in Minnesota, but matters to me.