A lot of people learn this lesson sadly. It isn’t “sexy” to brag that you have a gold / platinum rated high quality PSU. People would rather add a “Ti” or a “10” to their graphics card and then lose it all when it goes. Same reason why I have an UPS for home PC - sure, overvoltage, undervoltage, electrical noise probably won’t harm the PC. But why risk it? Also having a battery to save your shit, or buy more electricity online when you run out on a prepaid meter is cool (speaking from experience, happened to me like 10 times already lol)