The most expensive computer is Japan's Earth Simulator that costs around $400,000,000. The budget for the Earth Simulator project was authorized for the National Space Development Agency of Japan (NASDA) and the Power Reactor and Nuclear Fuel Development Corporation (PNC) in 1997, and NEC Corporation made the winning bid for the Japanese project.
The most expensive keyboard is Happy Hacking Keyboard HP Japan worth US $4,440 or P186,480 in Philippine peso.The keyboard is coated many times using a special brush made from the hairs of virgins, and then powdered with gold dust!
The most expensive video game is Sega Dreamcast game called Shenmue released in 1999, the project cost over $20 million and took over 7 years to complete.