Not really anymore. They make them expensive to repair, but they also don't want you to switch to another brand, because for them a user in the ecosystem purchasing apps and subscriptions is worth way more than a frustrated user purchasing a one time display replacement. Their whole strategy now (for a few years really) is to make devices that last at minimum 5 years, because it makes the user happy that their 5yo phone still works, and that means they are likely to get another iPhone, and because as long as the user is in the ecosystem, they are making money by taking their cut of everything that happens on the device