Do you remember the Nintendo Game & Watch? Those little handheld electronic games which were popular in early 80′s.
Nowadays, some of the better condition Game & Watches are sold for hundreds of dollars on EBay. The Game & Watch is produced by Nintendo from 1980 to 1991. Created by game designer Gunpei Yokoi, each Game & Watch features a single game to be played on an LCD screen in addition to a clock and an alarm. 43.4 million of those 59 games were sold worldwide.