You've no doubt suspected that manufacturers either make things of lesser quality so as to force people to replace them.
The process is called planned obsolescence, and it's part of a lawsuit that's been filed in two separate states in the US. Earlier this week, Apple confirmed what many believed for quite some time - that it was intentionally slowing down its older models of iPhone so as to ensure apps would run smooth with older processors and prevent crashing.
The two lawsuits, however, argue that "Apple’s decision to slow the operation of older phones to save battery life was never requested or agreed upon," and that the tech giant merely took the measure to push people towards buying a newer model. The lawsuit alleges that Apple never gave users consent to slow down their phones, and were never given the option to choose if they wanted it to happen.
Apple have yet to issue a statement on the lawsuits.