I can remember sitting on the living room floor when I was a kid ( maybe 9 years old ) and my father reading aloud an article in the magazine he was reading. It was about this games machine that was coming that you could CHANGE the cartridges in! This was so revolutionary that I remember that moment to this day, it was like Science Fiction. The Carts were insanely expensive in the UK though. I think we only ever had about 4 of them ( Combat, Space Invaders, Adventure & Superman ) then 10 years ago I saw a whole box full of them at a FleaMarket, 50cents each....20 years too late.