trig42:Those things go a really long time. I wonder if the new ones are built as well as the older ones were?
Couldn't tell you, I've only had mine for about ten years.
For people looking for replacements, either get the standard white ones which are priced at half or less of what the flashy-looking alu/stainless ones cost but are essentially the same thing, or get one off Trademe, you can often see near-new ones that were used once or twice and then sat in a cupboard for years, and since they're practically indestructible will outlive any possible warranty you'd get with a new one.