I remember playing with little video game systems when I was a youngster.
I'm more interested in this old Airline portable. Unfortunately, it looks like its owners have been solely been using it with this Pong console for so long it's burned into screen.
http://cgi.ebay.com/Vintage-PONG-Rad...QQcmdZViewItem
Still, I'll bet you don't see another one of either of those units for some time.