As a very real example, my family was not very well off growing up. My parents could typically only afford used Chrysler cars. The result was invariably getting stuck with vehicles that quite frankly were at least as expensive as the competition after repair costs and extra insurance.
And, speaking as someone who thankfully doesn't have to worry nearly as much about such things thanks to the sacrifices my parents made...
The DIFFERENCE in quality of life changes too. Its not just the cost of buying the cheap stuff every time, it is also that frustration of watching it break over and over.
Also, dare I say. One of the biggest silent accelerators of our class divide (financially) is this dilemma.
In the 40s-60s stuff was built to last. Lower income families could save and buy an expensive appliance but know it would last or at least be repairable. A fridge was a real investment. A set of silverware had the extra couple mm of thickness or even a square handle so it wouldn't bend at the first sign of trouble.
Now? Its all disposable, so those who have money to keep up with planned obsolescence will pull ahead. Consumers save 5-10$ on a 100$ tool, but now it lasts 3-5 years instead of 30-50