Companies are constantly redefining what things mean. “Buy” is just a license to use as long as the company likes. “Unlimited data” means 30GB data. “Made with mozzarella” means that something is made with something that remotely tastes like cheese.

No, buy means buy. Companies pretending otherwise are just lying.

Limited license.

They don't want to offer things like that because consumers won't all go for it, they want to get more money by deceiving prospective users/customers.

That's why we (supposedly) have regulator agencies. Unfortunately, like every other part of government, they have been wholly captured by industry and work against citizens and consumers, rather that for them.