Nostalgia sells. It always has. As people grow older and more financially secure, they seek out the things they longed for as children but for whatever reason never had. For some, it might be a vintage slot car set. Or a mint-condition Rock ‘Em Sock ‘Em Robots game. Or a particularly cool car they lusted over as a teenager while driving some ratty old hooptie.
This is a companion discussion topic for the original entry at https://www.hagerty.com/articles-videos/articles/2019/03/06/1990-96-nissan-300zx-getting-hot