I know there's the funny ha ha of a capitalist's worst nightmare of a product being too durable you don't need to replace it, but the situation is actually quite interesting to look into
A lot of articles tend to point towards a lack of "relevance" but ultimately that's not what is happening.
One of Tupperware's biggest hurdles is availability, not demand. They previously relied on independent sellers, down to individual independent sellers, like the Tupperware Parties of yore (people, usually women seeking financial independence from the 50s onward, would hold events to sell Tupperware to other suburban women -- similar to Avon). 2022 was the first year Tupperware could be found in places like Target. At All. Their exclusivity and middle(wo)men decreased their reach as the parties became less and less of a thing.
The next issue for Tupperware is in manufacturing. It only has a single US plant (which it now closed) and struggled post-(early)covid to pay for rising costs of plastic and transportation of materials.
THEN Tupperware got fucked by investors trying to make bank first on their success and then also on their failure as they got swept into "meme stock" betting, where inexperienced traders gamble on stock around jokes/irony.
So ultimately, Tupperware has failed to get with the times as it has always relied on suburban lady sales while countless imitation products hit shelves in places where working class people shop for cheaper and sometimes comparable products, the cost to make a good product went up and as Tupperware struggled, investors and gamblers who are addicted to Line Going Up cashed in on betting on their failure rather than success, and because Tupperware is so synonymous with plastic food storage, IP gremlins are more than delighted to crash and burn a company to get it on the cheap and turn it around to make the numbers go back up again.
Rather than a "oh the woe of durability" story, or lament that a product is not used anymore, this is an excellent microcosm of the vulturistic nature of capitalism.
