Earlier quoted context omitted.
> Lighter doesn't mean worse quality For a number of product categories it means replacing solid metal parts with inferior materials, and that pretty explicitly does mean worse quality. Have you used a 1960s KitchenAid mixer? They look almost identical to models that followed - but in the 1970s KitchenAid replaced the metal drive gear with one made of nylon on the consumer-focussed models, and now if you use one heav…
The question is, does that prevent something worse from breaking? It's not inherently bad to have wear parts in a device, after all. Shear pins are a great example where you need to replace them, but something more important would break if it wasn't the shear pin, so it's worth it. IDK the design of the mixers well enough to know if that's true for them, but I do wonder if that is the case.
That doesn't matter if it means, for example, that my new mixer can't actually mix bread dough on a higher speed anymore (citing this as it's actually a failure mode on newer (like 1970s forward) KitchenAid mixers to the point that the manual mentions it).
That is an objective decrease in quality and fitness for purpose.