e.g. https://www.consumereurope.dk/menu/laws/danish-laws/danish-s... § 42 onwards.
For example, Autodesk turned their 3ds max from $5k once into a $6k annual subscription. As a result, people started buying used perpetual licenses to avoid the overpriced subscription. Autodesk is denying those used license transfers in the US, but they have to tolerate it in the EU.
As a result, advertisement, movie and CGI studios in Europe gained a competitive advantage over US companies because the weak US laws failed to protect their own studios from predatory pricing.
And for a CGI animator making $3k monthly, those $6k in annual software fees really add 16% to the gross price, so enough to drive customers elsewhere.
The notion of "registering an app" ("зарегистрировать приложение") in Russian means "finding a crack".
A plumber has the choice of buying the MegaPlumberPlus (making it up) for a high price but that makes them 10% more efficient, or weld together their Plumbathon. Doesn't matter what the cost of the MPP(tm) is, it can not justify stealing (pirating in sw) it. Not in a moral, nor legal way.
For a private person doing private stuff on their own computer perhaps many would say morally this is grey, but if you live from it? Pay'em or don't use it.
For example, shrink wrap EULAs have not been considered binding here.
If this optional upgrade can be renegotiated at time of future sale, then any and all other upgrades must necessarily be renegotiable too.
I don't think Tesla wants to have to replace interiors every time someone resells a vehicle.