I read that it was originally available in brick-and-mortar stores, but it didn't sell because customers bought better-known products. So they decided to sell it only at "Tupperware parties" so as to create a mystique about their products. That sems to have worked until changes in our culture made that model unworkable.
“That seems to have worked until changes in our culture....”
And they obviously didn’t make marketing corrections.....unlike some US auto makers, I guess tupperware ISN’T too big to fail.