An Athlon t-bird of low speed last 8 seconds. But that's without a heatsink. 🙂
Anything with moving parts is more likely to wear out. Solid state parts will last decades, they were designed to, even knowing that most people won't be using them anywhere near that long. It's easier to design something they expect to last a decade at the most, with an expectation that some will fail in 5 years, than to build something guaranteed to last you 5 years at least.
You'll probably snap the connectors on things before you'll actually have them "wear out". (Barring defects and external influence of course.)