If it’s something I can fix myself, fix it. If it’s just reaching end-of-life I start looking for a new (or new-to-me) one and look a bit shabby until I find it.
Ties I would probably have more than one if I needed any; they feel more like a clothing item where the duplicates allow time to wash and dry (or dryclean? I have no idea how to care for a tie).
A good leather belt can easily last a decade, even a cheap PU “leather” one can last a year in a shabby state, which is fine with me while I slow-shop for a replacement. But if your lifestyle would make it more likely to get damaged and need frequent replacing, a backup so you’re not left without makes more sense than taking that risk.
Given the context of the article, the alternative suggestion isn’t “set up your own server” but “use software that doesn’t require a server”, which sidesteps most of that list.