In the 1970's and 80's, Tupperware was functionally superior to widely available alternatives. If you wanted a reliable tumbler with fitted lid that didn't leak

In the 1970's and 80's, Tupperware was functionally superior to widely available alternatives. If you wanted a reliable tumbler with fitted lid that didn't leak or a bin to keep celery fresh, Tupperware was the way to go. Pyrex glassware was available but the lids were leaky and/or low durability...most of them still are. And it looked good. There really wasn't anywhere for Tupperware to pivot, and the death seems natural.