You might collect Ferraris, which might all be objectively Robust Wire / USB Cable
better than a Honda Civic, but you aren't going to drive one every day.
OTOH a mechanical keyboard is much more comfortable than rubber domes for many people. And they can last almost indefinitely, even if a switch breaks, you can fix it in a couple minutes if you have a soldering iron. If you spill coffee on it, you can clean it with isopropyl alcohol and most of the time that will fix any issues.
My mobo still has a PS/2 port, but I bought an adapter for USB when that time comes. Other than needing a really deep cleaning (something I really need to do) - it works flawlessly.
And it doesn't have any of the "Windows Key" junk that happened in the 90s to distract from my *nix aesthetic. Only downside is that it is beige, while the rest of my system is black.
When/if it ever breaks - I have another one waiting in the wings, plus a Unicomp USB classic also available (I've been thinking about swapping it out to keep the aesthetic - and replacing the 'doze keys on it with Tux keycap covers or something like that).
Somewhere, in my junk stash, I also have an old SGI keyboard that I need to look into making an adapter or something for...
Now, the main reason I've not just bought one good keyboard and continued is honestly because the custom mechanical keyboard community is so nice. People design their own keyboard cases, caps, parts and there's so many ways of putting your dream keyboard together.