Draw a graph, write all the decades since computers were invented on the x axis, and "how many computers were sold that year and still work well enough to be re

Draw a graph, write all the decades since computers were invented on the x axis, and "how many computers were sold that year and still work well enough to be resold in 2024". Don't waste time looking it up, just best guess it. Now draw a vertical line where you define the word "retro" to apply, and erase everything to the right. It's a subjective word, so there's no wrong answer. Now re-ask your same question and look at your drawing. Personally, I see the most interest in "Windows 98 era" retro computing (winamp, age of empires 2, millenium aesthetic), and rarely see 80s stuff anymore, but the people I follow the interests of are probably younger. 10 years ago I would have said 90s, and 10 years before that, 80s, so perhaps you're 20 years older than me? Just a guess.