Last week the Wall Street Journal reported that -- no matter what Run-DMC and the Beastie Boys wore 25 years ago -- Adidas is not cool, with sales faring especially poorly among young people. It's not easy for any generation to accept that the zeitgeist has left it behind. (The Boomers still haven't.) But with the oldest Gen Xers having reached 50 and the youngest well into their 30s, that conclusion looks unavoidable. Here are eight other things that Gen X loved, but that millennials just don't seem to care about.