wearout
noun [ U ]
uk/ˈweəraʊt/ us MARKETING
a situation in which an advertisement has been used so much that it is no longer effective:
The possibilities for overcoming the effects of wearout are dependent upon the pattern of audience responses.
a situation in which a product can no longer be used because it has become damaged after having been used for a period of time:
After service lives of 15 or 20 years, replacement systems were planned to arrive before the added costs of wearout.