In recent years, niche and quirky items like vintage pinball machines have soared in popularity (and value). But what makes these retro machines so special? Aside from the arcade nostalgia, some ...

If you grew up in the '60s, '70s or '80s, you likely have fond memories spending Saturday afternoons at a dark arcade surrounded by the dings, clunks, whizzes and zings of a classic pinball machine.