Inspired by a three-year-old Kotaku article, Canadian blogger Rinry subjected eight NES carts to varying forms of torture to see just how durable the goods were. Seven of them were still fully playable.
http://lastchance.cc/230646/japanese-teen-idol-tries-to-destroy-snes-carts%3C/a%3E%3C/p%3E
How Tough are NES Games? [Rinry Game Game, thanks Corey]