Well you're not giving us any reason to prefer 1990s keyboards over modern keyboards, so I can say you're just as ignorant and uneducated unless you care to provide an explanation instead of useless insults.
short answer: it's a hobby, nig
long answer: people all over the world invest money in plenty of stupid stuff but it's their stuff and nobody's forcing you to partake in nor look at it
example: i don't understand why people spend so much on cosmetic mods for their cars because any car can you get you anywhere for just the same price but then i remember that i have a lot of expensive and dumb hobbies like sneaker collecting, mechanical keyboards, and yoyoing