alt Hacker Newsdefinitely one of those buy it for life type of thing, very satisfying once you get used to it, and it does take time to get used to it. the labelling is carefully designed to fade away just around the time you got to know how to use one, masterfully done lol
The mechanism is probably good forever but the bottom ring is liable to crack over time. They usually last me a decade or so which is fine for the price.