How long does Hi-Fi last?

Can you tell me, in your expertise as a cryptocurrency and finance professional, how long does the term 'Hi-Fi' typically last in the context of technology, especially when it comes to audio equipment or other electronic devices? Is it a fleeting trend that fades with time, or does it represent a lasting standard of high-quality sound reproduction? Additionally, are there any parallels between the longevity of Hi-Fi and the durability of investment strategies or cryptocurrencies in the financial world?