This is simply not true.
You have picked on a few expensive low frequency items that are really some element of luck in regards replacement as some kind of gotcha.
They do and will fail.
The easiest way to look at what happens over a sustained period is what happens when an old couple who have lived in a house for many years in old age end up selling.
Those houses typically have tens of thousands knocked off the price since they need a full overhaul because they haven't been maintained because they simply can't do it themselves.
UPVC windows like old wood ones dont last forever. In fact wooden windows are a great example, Adams house being a prime one. His house from the 70s didn't have UPVc windows in it when built, someone paid the sum to change them.
Seals go, hinges go, locks go, units can and do fail. Its just luck once you get to sort of 10 years as to if you get a good run out of your or bits start to fail. Thats maintenance.
Maintenance is not just does the rook leak, or the boiler breakdown. But is it safe, eg electrics, and in preventing a longer term issues (painting exterior) and in preventing loss of value (interior standard).
Replacing kitchens, bathrooms, painting walls etc are all part of maintenance, maintaining the value of the property.